On an Average Day, a Company Writes Checks Totaling $1,500

On an average day, a company writes checks totaling $1,500. These checks take 7 days to clear. The company receives checks totaling $1,800. These checks take 4 days to clear. The cost of debt is 9%. If the average daily float is $3,300, what is the net present value per day?

A) -282.48
B) -79.41
C) -297.00
D) -0.81