The president of real time inc has asked you to evaluate the proposed acquisition of a new computer. The computer's price is $40,000 and it falls into the MACRS 3-year class. Purchase of the computer would require an increase in net operating working capital of $5,000. The computer would increase the firm's before-tax revenues by $20,000 per year but would also increase operating costs by $5,000 per year. The computer is expected to be used for 3 years and then sold for $30,000. The firm's marginal tax rate is 40%, and the project's cost of capital is 14%

Refer to Real Time inc. What is the net investment required at t=0?

A. -$43,000

B. -$50,000

C. -$45,000

D. -$42,000

E. -$41,000