As a supervisor of a facilities engineering department, you consider mobile cranes to be critical equipment. The purchase of a new medium-sized, truck-mounted crane is being evaluated he economic estimates for the two best alternatives are as follows: (3pts) Alternatives Capital investment Annual expenses Useful life (years) Market value (at end of life) NPV, a 12% $272,000 28,800 $346,000 19,300 $25,000 $40,000 -$434,406 The study period is selected as 9 years. And you decide to lease a crane for the final three years under alternative A. The estimated annual leasing cost will be $66,000 per year (plus the annual expenses of $28,800). If the MARR is 12%, which alternative is better and why? Choose from the following options: (a) Select project A because it will cost $493,089 in NPV over the study period whereas project B will cost $434,406 in NPV (b) Select project B because its NPV exceeds that of project A by $50,250 (c) Select project B becah it will save you $58,683 in present worth over the required service period. (d) None of the above