In the ________of security, personnel must wear their identity badges at all time

Mark the letter A, B, C, or D on your answer sheet to indicate the correct one to complete each of the following sentences. 

In the ________of security, personnel must wear their identity badges at all time.

In the ________of security, personnel must wear their identity badges at all time.

• A.  requirement 
• B.  demands 
• C. interests 
• D.  assistance