Required information An electric switch manufacturing company is trying to decide between three different assembly methods. Method A has an estimated first cost of $43,000, an annual operating cost ( AOC) of $4,000, and a service life of 2 years. Method B will cost $83,000 to buy and will have an AOC of $9,500 over its 4 year service life. Method C costs $141,000 initially with an AOC of $4,500 over its 8 -year life. Methods A and B will have no salvage value. but Method C will have equipment worth 9% of its first cost. erform a future worth analysis to select the method at /=12% per year. he future worth of method A is \$ future worth of method B is $ future worth of method C is $ ethod s selected