Scotty Manufacturing is considering the replacement of one of its machine tools. Three alternative replacement tools-A, B, and C-are under consideration. The cash flows associated with each are shown in the following table. The firm's cost of capital is 15 percent.
| 
 Initial Cash Outflow (CFo) Year (t) 
 | 
 A   $95,000 
 | 
 B 
$50,000   Cash Inflows (CFi) 
 | 
 C 
$150,000 
 | 
| 
 1 
 | 
 $20,000 
 | 
 $10,000 
 | 
 $ 58,000 
 | 
| 
 2 
 | 
 20,000 
 | 
 12,000 
 | 
 35,000 
 | 
| 
 3 
 | 
 20,000 
 | 
 13,000 
 | 
 23,000 
 | 
| 
 4 
 | 
 20,000 
 | 
 15,000 
 | 
 23,000 
 | 
| 
 5 
 | 
 20,000 
 | 
 17,000 
 | 
 23,000 
 | 
| 
 6 
 | 
 20,000 
 | 
 21,000 
 | 
 35,000 
 | 
| 
 7 
 | 
 20,000 
 | 
 - 
 | 
 46,000 
 | 
| 
 8 
 | 
 20,000 
 | 
 - 
 | 
 58,000 
 | 
a. Calculate the NPV of each alternative tool.
b. Using NPV, evaluate the acceptability of each tool.
c. Rank the tools from best to worst, using NPV.