Oceanview Manufacturing is considering an investment that would require an initial net investment of $670,000. The following revenues/expenses relate exclusively to the investment: Sales $370.000 Variable expenses $20,000 Contribution margin $350.000 Fixed expenses Salaries expense $20,000 Rent expense $20,000 Depreciation expense $30,000 Totalfixed expenses $70,000 Operating income $280,000 The investment will have a residual value of $10,000 at the end of its 13 year useful life. What is the payback period for this investment? O A 2.68 years O B. 2.39 years OC. 1.81 years OD. 2. 16 years