In a Typical Month, Abbot Tours Received 60 Checks Totaling

In a typical month, Abbot Tours received 60 checks totaling $139,000. These are delayed 3.5 days on average. What is the average daily float? Assume 30 days in a month.

A) $12,500
B) $13,333
C) $14,528
D) $16,217
E) $16,667