On December 31, 2015, the accounts receivable account and allowance for doubtful accounts of Beckman Corporation have the balances of $600,000 debit and $5,000 debit, respectively. Net sales for the year 2015 are $1,000,000. The company uses percentage of receivables method to account for bad debts and the percentage for estimated uncollectible is 5%. The amount of adjusting entry for bad debt expense that would be recorded on December 31, 2015 is: a. $30,000 b. $35,000 c. $50,000 d. $29,750