The capital budgeting committee of the Caldwell 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 Caldwell Pipe Corporation. The major opportunity cost associated with the continued use of the existing machine is Select one: a. $20,000 of salvage in 5 years on the new machine b. $400,000 cost of the new machine c. $30,000 of annual savings in operating costs d. lost sales resulting from the inefficient existing machine