After Standards Are Determined, the Next Step in the Control

After standards are determined, the next step in the control process is to measure performance. This step requires that two important questions be answered. These questions are:

A) What is to be measured and why is it to be measured?
B) Where is it to be measured and how is it to be measured?
C) Who is to measure it and what are they to measure?
D) How is it to be measured and how often do we measure it?