The correct answer is piutang usaha (D) 300.000,00, Kas (D) 400.000,00, Cadangan kerugian piutang (K) 700.000,00. This is because on July 5, 2009, the debtor pays Rp 400.000,00, which reduces the accounts receivable. The entry debits the accounts receivable for Rp 300.000,00 (the remaining amount to be paid) and debits cash for Rp 400.000,00 (the amount paid). The entry also credits the allowance for doubtful accounts for Rp 700.000,00, as the accounts receivable is being removed.