Which one of the following statements with regard to objectives of proper access control system in a plant security is not correct ?

An access control system is a security measure designed to regulate who can enter or exit specific areas within a facility. Its primary objectives include:

• Authorization: Ensuring only permitted personnel and materials enter controlled zones (Option A).
• Auditability: Maintaining a digital or physical trail of access events for monitoring and investigation (Option C).
• Prevention and Detection: Identifying and stopping unauthorized attempts to enter or exit, thereby minimizing security risks (Option D).

Option B is not a direct objective of an access control system. Assessing the manpower required for vital installations is a function of Human Resource Management or Operations Planning. While access logs may provide data on current staffing levels, the system's purpose is security and regulation, not workforce estimation or labor resource planning.