ABC Ltd is deciding whether or not to accept a special order for 500 units. It has no spare capacity to accept the order. If the order is accepted, the incremental revenue would be $10,000 and the incremental cost to make the order would be $8000. In deciding whether or not to accept the order, the firm should consider:

Group of answer choices

the incremental revenue = $10,000 and the incremental cost = $8000, only.

the opportunity cost of accepting the order as part of the impact on profits.

the unavoidable costs.

all manufacturing costs only.