To satisfy the requirement that employees cannot see complaints made against themselves, an Access Control Policy (B) is the most suitable security solution. Access Control Policies in Pega allow for the definition of conditions under which access to certain data or cases is granted or denied. By configuring a policy that checks the relationship between the complaint and the employee (such as matching IDs), the system can dynamically restrict access to sensitive information, ensuring compliance with auditing policies.Reference: Pega Community documentation on Access Control Policies.