Use the following information to answer next two An investment with a life of Year 1:$4,500 Year 2: $4,500 Year 3: $2,000 Year 4: $2,000 4 years costs $10,000 now and earns the following cash flows 17. Calculate the profitability index given the required return of 9% A) 1.09 B) 1.33 C) 0.94 D) 0.89 18. Calculate the payback period A) 3 years B) 3.5 years C) 2.5 years D) 2.75 years