Kelly's Corner writes 18 checks a day for an average amount of $630 each. These checks generally clear the bank 2.5 days after they are written. In addition, the firm generally receives an average of $16,400 a day in checks. Deposited amounts are available after 2 days. What is the amount of the firm's disbursement float?
A- $32,800
B- $22,680
C- $28,350
D- $25,800
E- $29,840