Ocean Breeze Company runs beach equipment stores along the west coast. Ocean Breeze's management estimates that if it invests $300,000 in a new computer system, it can save $70,000 in annual cash operating costs. The system has an expected useful life of 10 years and no terminal disposal value. The required rate of return is 7% Ignore income tax issues in your answers. Assume all cash flows occur at year-end except for initial investment amounts. What is the payback period?

	A.	4.29 years
	B.	4 years
	C.	5 years
	D.	10 years