Currently, R&T Incorporated sells 275 units a month at a price of $792 a unit. The firm believes it can increase its sales by an additional 45 units if it switches to a net 30 credit policy. The monthly interest rate is .6 percent and the variable cost per unit is $485. What is the net present value of the proposed credit policy switch? O A) $2,062,875 OB) $1,287,520 OC) - $9,240 OD) $1,768,680 O E) -$213,360