Harvard Manufacturing Company is considering the following investment proposal: Initial investment: Depreciable assets (straight-line) $48,000 Working capital 4,000 Operations (per year for 4 years): Cash receipts $30,000 Cash expenditures 17,000 Disinvestment: Salvage value of equipment $2,000 Recovery of working capital 4,000 The investment's payback period in years (rounded to two decimal points) is: Select one: A. 3.56 B. 4.00 O C. 1.50 O D. 4.67