* B: Salesforce requires that all Apex code have at least 75% test coverage in production before deployment. This ensures that the system remains reliable.
* C: All triggers must have some test coverage as part of the overall 75% requirement for Apex code.
Why not other options?
* A: Object visibility settings are not a deployment requirement.
* D: Visual Flows do not require test coverage for deployment to production.
References:
* Apex Test Coverage Requirements