Answer:
C.
Explanation:
The estimation of the selling price of the old machine is not good data to make a decision in this case. Instead, book value, annual variable costs, even the purchase price of the new machine, are strong data to decide wether replace it or not.
Because all these options are related to actives of the company, so, to make a decision of replacements we need top analysis actives and compare them with the hypothetic results with the new machine.