QI\ a contractor want to invest his money in one of projects A or B if you know that the interest rate is 10%, choose the best alternative A or B using net present worth method ? A 120,000 CU B 135.000 CU Inital Investment Annual revenue Annual expenses Sa Nage value Project line Cost of machines replaced every 3 years 15,000 CU year 10.000 CU\year 12,000 CU 12 years 3000 CL 17.000 CU year TO CU year 20.000 CU 6 years 3500 CU