Option A is correct because verifying EHR's product usage against the list of compliant products on the Google Cloud compliance page ensures that the products used meet the necessary privacy compliance requirements. Option B is also correct because executing a Business Associate Agreement (BAA) with Google Cloud is a crucial step for HIPAA compliance, which is a standard regulation EHR Healthcare must adhere to as a healthcare provider handling protected health information (PHI). Options C, D, and E are incorrect because they do not directly address the compliance audit requirements.