A firm with an inventory period of 30 days, an accounts receivable period of 30 days, and an accounts payable period of 90 days has an operating cycle of O A 60 OB.-60 O C. 30 O D.-30 days.

A firm with an inventory penod of 30 days, an accounts recelvable period of 30 days: and an accounts palyable period of 90 days has an operating cycle of A. 60 B. .60 C30 0.-39