Ursa Major Solar (UMS) has used Aura components significantly in its Salesforce application development.

The correct selection is A, C. Aura accessibility checks can be invoked in JavaScript tests and WebDriver-based browser tests. Those environments can inspect rendered DOM behavior for common accessibility violations, making accessibility a repeatable part of automated component quality rather than a purely manual review. 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 other options are weaker because they sacrifice isolation, realism, or repeatability and therefore make failures harder to reproduce and diagnose across environments. For this scenario, the decisive point is therefore the platform behavior represented by the selected options (A. JSTEST; C. WebDriver Test). 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.