Sheffield Corp. had a balance in the Accounts Receivable account of $817000 at the beginning of the year and a balance of $910000 at the end of the year. Net credit sales during the year amounted to $7080700. The average collection period of the receivables in terms of days was 43 days. O 42.0 days. O 44.5 days. O4 days. Which ratios should be used to help answer each of these questions? (a) > (b)