The following data have been estimated for two mutually exclusive investment alternatives, A and B, associated with an engineering project for which revenues as well as expenses are involved. Alternative A B Initial Investment $ (3,500,000 + R x 1,000) $ (5,000,000 + R x 1,000) Annual Revenues $ (2,258,000 )$ (2,883,000) Annual Expenses $ (1,003,000) $ (1,403,000 ) Useful life 4, 6 Salvage value at the end of the projects useful life NIL NIL Minimum acceptable rate of return (MARR) is 10% per year. (a) Use the repeatability assumption. For a study period of 12 years, which alternative is more desirable based on Present Worth (PW) analysis? (7 marks) (b) Use the repeatability assumption. For a study period of 12 years, which alternative is more desirable based on Annual Worth (AW) analysis? (7 marks) (c) (d) Use co-terminated assumption. For a study period of 6 years, which alternative is more desirable based on Future Worth (FW) analysis? (8 marks) Under what condition of the study period the repeatability assumption may be used? (3 marks)