Goltra Clinic is considering investing in new heart-monitoring equipment. It has two options: Option A would have an initial lower cost but would require a significant expenditure for rebuilding after 4 years. Option B would require no rebuilding expenditure, but its maintenance costs would be higher. Since the Option B machine is of initial higher quality, it is expected to have a salvage value at the end of its useful life. The following estimates were made of the cash flows. The companys cost of capital is 8%.

		Option A		Option B
Initial cost		$161,000		$248,000
Annual cash inflows		$70,600		$82,100
Annual cash outflows		$30,300		$25,000
Cost to rebuild (end of year 4)		$51,000		$0
Salvage value		$0		$8,500
Estimated useful life		7 years		7 years

(a) Compute the (1) net present value, (2) profitability index, and (3) internal rate of return for each option. (Hint: To solve for internal rate of return, experiment with alternative discount rates to arrive at a net present value of zero.