Suppose at the end of the year before any adjusting entries, a company has a balance in Allowance for Uncollectible Accounts of $5,000 (debit). During the year, the company reported the following amounts: Credit sales to customers= $550,000 Cash collections from customers= $540,000 Actual bad debts= $20,000 What was the balance of Allowance for Uncollectible Accounts at the beginning of the year? a) $25,000 b) $10,000 c) $15,000 d) $20,000