Which of the Following Statements Are Correct

Which of the following statements are correct?
I. An increase in the accounts payable period shortens the cash cycle.
II. The cash cycle is equal to the operating cycle minus the inventory period.
III. A negative cash cycle is preferable to a positive cash cycle.
IV. The cash cycle plus the accounts receivable period is equal to the operating cycle.

A) I only
B) III and IV only
C) I and III only
D) I and IV only
E) I, II, and III only