answer for A and B pls

Lompat Tikam Berhad (LTB) wants to purchase a new network file server for its wide-area computer network. The server costs RM65,000. It will be completely obsolete in three years. LTB is having an alternative to borrow the money at 10 percent or to lease the server. If LTB lease, the payments will be at RM27,000 per year, payable at the end of each of the next three years. If LTB buy the server, LTB can depreciate the server using straight-line to zero over three years. The tax rate is 40 percent. From the above information you are required to answer the following questions. a. Prepare the Cash Flows Analysis by showing clearly the Net Advantage of Leasing (NAL). (8 Marks) b. Based on NAL in part (a), should LTB lease or purchase the server? Explain your answer. (4 Marks)