Answer:
D
Step-by-step explanation:
A B C
Contribution per unit 20 30 40
Machine hours per unit 2.5 3.25 4.5
Contribution per hour 8 9.23 8.89
Product B has the highest contribution per hour .
It is stated that the capacity is constrained by the number of hours the machine can run during a period . and all products produce will be sold. This has made the machine hour the determinant factor in the situation.
Therefore product B should be emphasized if the goal is to maximize contribution margin.