Which of the Following Best Characterizes What Managers Should Do

Which of the following best characterizes what managers should do in order to recognize problems?

A) set up a process for opportunity identification to recognize problems
B) set up a control system to identify problems and a process of opportunity identification to identify opportunities
C) set up a control system to monitor performance
D) set up a control system to identify opportunities
E) set up a control system to identify opportunities and a process of opportunity identification to identify problems