What action should security personnel take before granting access to visitors?

The correct action for security personnel to take before granting access to visitors is to verify their identification. This procedure is essential for ensuring the safety and security of the facility. By confirming the identity of each visitor, security personnel can help prevent unauthorized access, reduce the risk of potential threats, and enhance the overall security protocols within the establishment.

Verification typically involves checking an official form of identification, such as a driver's license or employee badge, against a visitor log or pre-approved list. This process creates a record of who is entering the premises, which is vital for accountability and for responding to any security incidents that may arise.

The other options do not effectively secure the facility. Seeking feedback on security measures does not contribute to the safety of the environment before entry. Limiting access to two visitors at a time may not address the underlying issue of identity verification, and while guiding visitors can be helpful in their navigation, it does not ensure that those individuals are authorized to enter the premises.