A Firm's Inventory and Accounts Payable Periods Are 80 and 42

A firm's inventory and accounts payable periods are 80 and 42 days respectively.How long can the firm's receivables period be in order to have no longer than a 65 day cash conversion cycle?

A) 27 days
B) 38 days
C) 57 days
D) 103 days cash conversion cycle = inventory period + receivable period - accounts payable period
65 $\ge$ 80 days + receivables period - 42 days