Charlie's Bar Writes 3 Checks a Day for an Average

Charlie's Bar writes 3 checks a day for an average amount of $5,400 each. These checks generally clear the bank 4 days after they are written. In addition, the firm generally receives and deposits checks amounting to $18,700 each day. All deposits are available on the next day. What is the firm's net float?

A) Net collection float of $13,200
B) Net collection float of $18,700
C) Net collection float of $22,300
D) Net disbursement float of $46,100
E) Net disbursement float of $64,800