Jeff Is Informing Mark That He Believes There Has Been

Multiple Choice

Jeff is informing Mark that he believes there has been a security breach and wants things checked. Mark checks all security systems within the computer, completes an access audit, and checks exterior security devices, although he knows that his company has installed every security option possible. What is Mark practicing?

A) Due Care
B) Due Diligence
C) Both A and B
D) Neither A nor B