Seiko Corporation has the following account balance: Particulars Accounts receivable Net Realizable Value 12-31-2021 5,250,000 5,100,000 12-31-2020 4,800,000 4,725,000 During the year, Seiko wrote off customers' accounts totaling P160,000 and collected P40,00 on accounts written off in previous years. What is the balance of allowance for doubtful accounts for 2020 and 2021, respectively? O P100,000 and P125,000 O P150,000 and P75,000 O P125,000 and P100,000 O P75,000 and P150,000