Accounting study help

Marie's Clothing Store had an accounts receivable balance of $490,000 at the beginning of the year and a year-end balance of $620,000. Net credit sales for the year totaled $3,400,000. The average collection period of the receivables was: (Round any intermediary calculations to two decimal places and your final answer to the nearest day.) O A. 60 days. OB. 67 days. O C. 7 days. OD. 53 days