Alpha used a periodic inventory system. Merchandise was purchased on account for $2,000. The transaction was F.O.B. shipping point. Freight of $100 was originally paid by the seller. Alpha's journal entry to reflect this purchase includes debits to:________.
A) Freight-out for $100.
B) Freight-in for $100.
C) Accounts Payable for $2100.
D) Purchases for $2100.