What is the annual equivalent worth of a project where $($a$)$ the initial investment is

$$50,000$; $($b$)$ will have revenues of $$8,000$ per year; $($c$)$ annual cost of operation and

maintenance of $$1,200$ and $($d$)$ a residual or salvage value of $$2,000$ after $15$

years? Assume rate of return is $8\%.$

A$.$ $$-41,200$

B$.$ $$13,438$

C$.$ $$6,800$

D$.$ $$288$

E$.-$$$712$

F$.$ $$3,600$