Regarding key control in SHU, which statement is correct?

Regarding key control in SHU, which statement is correct?

• A. One officer may hold keys to both doors.
• B. The outer door key is kept by main control only.
• C. Inside SHU personnel hold keys to the inside door; the outer door is controlled by main control; no one may possess keys to both doors.
• D. Keys are rotated among staff with no fixed policy.

Answer: (C)