A company has net credit sales of $1,400,000, beginning net accounts receivable of $300,000, and ending net accounts receivable of $200,000. What is the days' sales in accounts receivable? (Use 365 days in calculations as needed. Round any intermediate calculations to two decimal places, and your final answer to the nearest whole day.)

a	78 days
b	65 days
c	130 days
d	52 days