A contractor is considering investing in purchasing a crane for 24 months construction job. The purchase price is $150,000. He will sell the crane for $100,000 after finishing the construction job (i.e., after 24 months). - Savings are expected to be $1,700 per month The crane is in fairly good condition now, so he doesn't expect to have any maintenance costs for the first nine months. Starting from the 10th month, maintenance costs are expected to be $1500 per month. - Monthly interest is 1%. A. Draw Cash flow Diagram B. what is the net present worth of this investment? C. Should the contractor buy the crane