$10$s$.2$ Consider the following financial data for an investment project:

Required capital investment at $n=0$:$$100,000$

Project service life: $10$ years

Salvage value at $n=10$:$$15,000$

Annual revenue: $$150,000$

Annual O&M costs $($not including depreciation$)$: $$50,000$

Depreciation method for tax purpose: seven$-$year MACRS

Income tax rate: $25\%.$

Determine the project cash flow at the end of year $10.$

$($a$)$ $$86,250$

$($b$)$ $$73,000$

$($c$)$ $$75,000$

$($d$)$ $$67,000$