Which One of the Following Statements Is Correct Concerning the Accounts

Which one of the following statements is correct concerning the accounts payable period?

A) managers generally prefer a shorter accounts payable period than a longer one
B) extending the accounts payable period effectively decreases the cash needs of a firm
C) increasing the accounts payable turnover rate increases the accounts payable period
D) an increase in the accounts payable period will increase the operating cycle,all else equal
E) the accounts payable period is equal to the cost of goods sold divided by the average accounts payable