Which two actions will contribute to an improvement of code security?

The correct selection is B, C. Secure pull-request review and automated static security analysis create complementary controls. Human reviewers assess architecture and context, while scanners detect repeatable vulnerability patterns and can block unsafe changes in CI before they reach downstream environments. From a build perspective, the implementation should be source-driven, reviewable, automatable, and modular. Engineering controls such as version control, package boundaries, static analysis, coding standards, and isolated development environments reduce defects early and make changes easier to understand, test, and promote. The remaining options are weaker because they address symptoms after code is written instead of improving the build process through automation, modularity, and explicit development standards. For this scenario, the decisive point is therefore the platform behavior represented by the selected options (B. Implement a pull request and secure code review.; C. Integrate a static code security analysis tool in the CI/CD process.). 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: Building — Salesforce DX; package development; coding standards; static analysis; source control; secure development.