The Seattle Corporation has been presented with an investment opportunity which will yield cash flows of $30,000 per year in Years 1 through 4, $35,000 per year in Years 5 through 9, and $40,000 in Year 10. This investment will cost the firm $150,000 today, and the firm's cost of capital is 10 percent. Assume cash flows occur evenly during the year. What is the payback period for this investment?

Select one:
A. 5.23 years
B. 4.86 years
C. 4.00 years
D. 6.12 years
E. 4.35 years