On a typical day a firm writes $10,000 in checks. It generally takes 5 days for these checks to clear. Each day the firm typically receives $11,000 in checks that take 4 days to clear. What is the firm's net float? Select one: a. $6,000 positive O b. $6,000 negative c. $1,000 positive O d. $1,000 negative e. Zero net float