Answer: Please Refer to Explanation
Step-by-step explanation:
1. Unavoidable fixed overhead - Eliminate an unprofitable segment. IRRELEVANT.
It is a fixed overhead so it will still occur regardless.
2. Direct labor - Make or buy. RELEVANT. Buying can reduce the direct labour involved in making.
3. Original cost of old equipment - Equipment replacement. IRRELEVANT. It occured in the past and does not matter anymore.
4. Joint production costs - Sell or process further. IRRELEVANT.
5. Opportunity cost - Accepting a special order. RELEVANT.
Can increase cost in business.
6. Segment manager’s salary - Eliminate an unprofitable segment (manager will be terminated). RELEVANT as it eliminating Segment will remove manager's salary.
7. Cost of new equipment - Equipment replacement. RELEVANT because the the cost of the new Equipment determines if we can afford to replace the old one.
8. Incremental production costs - Sell or process further. RELEVANT because incremental costs only apply if product is processed further.
9. Direct materials - Equipment replacement (the amount of materials required does not change). IRRELEVANT if the number of materials required does not change.
10. Rent expense - Purchase or lease a building. RELEVANT because the rent expense only applies if the building is leased.