Assuming a discount rate of $10\%$ and using a five$-$year time horizon:

a$.$ What is the net present value of the relevant cash flows associated with the lease option?

Note: Do not round intermediate calculations. Round your answer to the nearest whole dollar amount. Negative amount should be indicated with a minus sign.

Net present value of relevant cash flows

b$.$ What is the net present value of the relevant cash flows associated with the buy$-$and$-$build option?

Note: Do not round intermediate calculations. Round your answer to the nearest whole dollar amount. Negative amount should be indicated with a minus sign.

Net present value of relevant cash flows