Ace Electronics, which uses a perpetual inventory system, recorded a debit to Sales Returns & Allowances and a credit to Accounts Receivable, along with a debit to Inventory and a credit to Cost of Goods Sold. What business event must have taken place?

A. The customer received a damaged product, but kept the product and asked for a reduction in the price.

B. The customer received a damaged product and returned it.

C. The customer received a discount because the invoice was paid on time.

D. The customer sent in a partial payment and promised to pay the balance next month.