Barga company's net sales for year 1 and year 2 are $668,000 and $745,000, respectively. Its year-end balances of accounts receivable follow: year 1, $58,000; and year 2, $93,000. What is the average collection period for accounts receivable in year 1 and year 2 combined?
a) 31.85 days
b) 45.67 days
c) 52.75 days
d) 60.20 days