Galveston Pipe Corporation the Capital Budgeting Committee of the Galveston

Galveston Pipe Corporation The capital budgeting committee of the Galveston Pipe Corporation is evaluating the possibility of replacing its old pipe-bending machine with a more advanced model.Information on the existing machine and the new model follows:
Refer to Galveston Pipe Corporation.The $80,000 market value of the existing machine is

A) a sunk cost.
B) an opportunity cost of selling the old machine.
C) irrelevant to the equipment replacement decision.
D) a historical cost.