The correct selection is C, D, E. Migration testing must confirm transformed values, record ownership, and referential integrity. Account and Lead ownership affects access and reporting, source-to-target transformations must reconcile correctly, and Contacts must remain associated with the proper Accounts after identifier remapping. From a testing perspective, the goal is deterministic evidence that the solution behaves correctly under the conditions that matter. Tests should isolate external dependencies, use controlled data, exercise positive and negative paths, and reproduce realistic volume or user behavior where required without making production the first place defects are discovered. The rejected choices either test the wrong layer, introduce live-system dependencies, or detect problems too late to provide the deterministic early feedback expected from a mature test strategy. For this scenario, the decisive point is therefore the platform behavior represented by the selected options (C. Account and Lead ownership; D. Data transformation against source system; E. Contact association with contact account). Applying that rule consistently keeps the implementation aligned with Salesforce-supported lifecycle practices and makes the resulting change easier to review, validate, and operate across environments.

Study Guide reference: Testing — Apex testing; test-data isolation; mocks; regression testing; performance/load testing; sandbox test strategy.

The correct selection is A. Test.startTest() and Test.stopTest() create a fresh governor-limit context around the behavior under test and ensure asynchronous work completes before assertions. They are a testing technique, not a substitute for bulkifying production code that genuinely exceeds platform limits. From a testing perspective, the goal is deterministic evidence that the solution behaves correctly under the conditions that matter. Tests should isolate external dependencies, use controlled data, exercise positive and negative paths, and reproduce realistic volume or user behavior where required without making production the first place defects are discovered. The alternatives do not provide equivalent evidence: they either validate only a narrow implementation detail or depend on conditions outside the test ' s control. For this scenario, the decisive point is therefore the platform behavior represented by the selected option (A. Use test.startTest() and test.stopTest() methods to reset governor limits.). Applying that rule consistently keeps the implementation aligned with Salesforce-supported lifecycle practices and makes the resulting change easier to review, validate, and operate across environments.

Study Guide reference: Testing — Apex testing; test-data isolation; mocks; regression testing; performance/load testing; sandbox test strategy.

The correct selection is D. A governed citizen-development program can shift low-complexity backlog work to trained business technologists using declarative tools, freeing scarce expert developers for complex engineering. Guardrails, standards, testing, and controlled release processes are still required to prevent low-code technical debt. From a planning perspective, the architect must reduce uncertainty before execution by defining ownership, governance, environment purpose, prioritization, and measurable acceptance criteria. Decisions should be repeatable and visible across teams so delivery capacity, risk, and stakeholder expectations remain aligned throughout the lifecycle. The rejected options do not resolve the planning problem at its source; they either add process overhead or make assumptions that leave ownership and delivery risk unclear. For this scenario, the decisive point is therefore the platform behavior represented by the selected option (D. UC should start a citizen development program.). Applying that rule consistently keeps the implementation aligned with Salesforce-supported lifecycle practices and makes the resulting change easier to review, validate, and operate across environments.

Study Guide reference: Planning — governance; agile planning; environment strategy; backlog prioritization; sandbox strategy; stakeholder alignment.