
Answer:
D. Debit to Accounts Receivable
Explanation:
Transaction of sale in Perpetual Inventory system will be recorded as follow:
                     Dr.   Cr.
Account Receivable     xxx
Sales                      xxx
Cost of Goods Sold      xxx
Merchandise Inventory       xxx
There is no entry to purchases, cost of goods sold is debited and inventory is credited. So, the only correct option which is dealt in above transactions.