Hollywood Shoes would like to maintain their cash account at a minimum level of $69,000, but expect the standard deviation in net daily cash flows to be $5,900; the effective annual rate on marketable securities to be 7.00 percent per year; and the trading cost per sale or purchase of marketable securities to be $290 per transaction. What will be their optimal cash return point? (Round your answer to 2 decimal places.)

a). $91,717.99

b). $74,900.00

c). $87,903.31

d). $103,437.46