Fortune Company's direct materials budget shows the following cost of materials to be purchased for the coming three months: January February March Material purchases $12,040 $14,150 $10,970 Payments for purchases are expected to be made 50% in the month of purchase and 50% in the month following purchase. The December Accounts Payable balance is $6,500. The expected January 31 Accounts Payable balance is:

a.$18,540.
b.$13,095.
c.$6,500.
d.$9,270.
e.$12,520.