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A retailer makes a $100 sale with terms of 2/10, 1/30 on the first of the month. The customer returns $20 of merchandise for credit on account. What journal entry will the retailer record when payment is received within the discount period under a perpetual inventory system? Cash 98.00 Sales Discounts 2.00 Accounts Receivable 100.00 Accounts Payable 80.00 Cash 78.40 Purchase Discounts 1.60 Cash 78.40 Purchase Discounts 1.60 Accounts Payable 80.00 Cash 78.40 Sales Discounts 1.60 Accounts Receivable 80.00