Which of the 5 C's should you establish an entry control point?

You should establish an entry control point primarily at the "Command" level of the 5 C's (Command, Control, Communication, Coordination, and Cooperation). This ensures that all personnel entering the area are accounted for and that access is managed effectively. It helps maintain security, facilitate communication, and streamline operations within the controlled environment. Setting up this point allows for better oversight and management of resources and personnel.