Which of the Following Statements Is True

Which of the following statements is true?
I. Throughput is the total volume of production passing through a facility.
II. Throughput is controlled by the total capacity of a system.
III. Work centers feeding bottlenecks should be 100% utilized.

A) I only is true
B) I and II only are true
C) II and III only are true
D) II only is true
E) III only is true