Bos Sporting Goods, a retail sportswear company, purchased merchandise of $500 on account from Awesome Sweats, a supplier. Awesome Sweats prepaid freight charges of $50 and added them to the invoice. The journal entry to record the purchase is:
a. Debit Purchases, $550; credit Accounts Payable, $550.
b. Debit Purchases, $500; debit Freight In, $50; credit Accounts Payable, $550.
c. Debit Accounts Payable, $550; credit Purchases, $550.
d. Debit Purchases, $500; credit Freight In, $50; credit Accounts Payable, $550.