Which of the Following Is Not One of the Rules

Multiple Choice

Which of the following is not one of the rules for working in secure areas?

A) Unsupervised work in secure areas should be avoided.
B) When no one is in a secure area, it should be locked and verified periodically.
C) No one should be allowed to work in secure areas for more than four hours in a row.
D) Electronic devices that can record or copy mass amounts of information should be forbidden in secure areas.