Olinick Corporation is considering a project that would require an investment of $354,000 and would last for 8 years. The incremental annual revenues and expenses generated by the project during those 8 years would be as follows (Ignore income taxes.):

sales 210,000
Variable expenses 22,000
Contribution Margin 188,000
Fixed expenses:
Salaries 40,000
Rents 53,000
depreciation 48,000
Total fixed expenses 141,000
Net Operating Income 47,000
The scrap value of the project's assets at the end of the project would be $30,000. The cash inflows occur evenly throughout the year. The payback period of the project is closest to:

3.7 years

7.5 years

4.8 years

3.5 years