a. ABC Co., which has been in business for three years, makes all its sales on credit and does not offer cash discounts. Its credit sales, customer collections, and write-offs of uncollectible accounts for its first three years are as follows. Year Sales Collections Accounts Written Off 2019 $733,000 $716,000 $5,300 2020 857,000 842.000 5.800 2021 945,000 928,000 6,500 Additional information: ABC recognizes bad debts expense as 1% of sales. (Hint: This means the allowance account is increased by 1% of credit sales regardless of any write-offs and unused balances.) Required: i. What are ABC's year-end balances of accounts receivable for each of the three years? Show your workings. (3 marks) ii. What total amount of bad debts expense appears on ABC's income statement for each of the three years? Show your workings. (3 marks) iii. What are ABC's year-end balances of allowance for uncollectible accounts for each of the three years? Show your workings. (3 marks) iv. Comment on the appropriateness of the 1% rate used to provide for bad debts based on your analysis in part i. (Maximum words: 50) (1 mark)