Orio,Inc Has a Beginning Receivables Balance on January 1^st of $560

Orio,Inc. has a beginning receivables balance on January 1^st of $560. Sales for January through April are $620,$680,$570 and $550,respectively. The accounts receivable period is 30 days. How much did the firm collect in the month of March? Assume that a year has 360 days.

A) $550
B) $570
C) $620
D) $625
E) $680