The Following Questions Concern the Case of Steve, an Imaging

The following questions concern the case of Steve, an imaging technologist who is assigned to supervise storage of controlled substances in the radiography department.
-The radiography department where Steve works stores some controlled substances in addition to radiopaque agents and contrast media. Steve is asked to review routine security measures the department uses to store these substances. Precautions Steve's department should be taking include:

A) storing of the drugs under double lock and key.
B) requiring at least one signature for removing the medication from the supply bin.
C) accounting for all drugs once a day at the end of each employee shift.
D) having the same employee verify the count of every C-II drug, for consistent monitoring.
E) ensuring that each day's drug count agrees with the previous shift's count.