XYZ Co is considering two options for a new machine:
Option A has a lower initial cost but requires rebuilding after 4 years, while Option B has higher initial and maintenance costs but no rebuilding and a salvage value.
The NPV is calculated to be higher for Option B at $35,513 compared to $6,321 for Option A. The profitability index is also higher for Option B at 1.0931 versus 1.0167 for Option A. Therefore, Option B should be accepted as it has the higher NPV and profitability index.