The Chief Information Security Officer (CISO) in a Company Is

The Chief Information Security Officer (CISO) in a company is working to maximize protection efforts of sensitive corporate data. The CISO implements a "100% shred" policy within the organization, with the intent to destroy any documentation that is not actively in use in a way that it cannot be recovered or reassembled. Which of the following attacks is this deterrent MOST likely to mitigate?

A) Dumpster diving
B) Whaling
C) Shoulder surfing
D) Vishing