Kelton Inc. reported net credit sales of $450,000 for the current year. The unadjusted credit balance in its Allowance for Doubtful Accounts is $750. The company has experienced bad debt losses of 1% of credit sales in prior periods. Using the percentage of credit sales method, what amount should the company record as an estimate of Bad Debt Expense?a. $3,750b. $4,500c. $4,470d. $4,800