P12.3A (LO 2, 3, 4), AN Service Brooks 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 main- tenance 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 company's cost of capital is 8%. Option A Option B Initial cost $160,000 $227,000 Annual cash inflows $71,000 $80,000 Annual cash outflows $30,000 $31,000 Cost to rebuild (end of year 4) $50,000 $0 Salvage value $8,000 Estimated useful life 7 years 7 years $0