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 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....