Answer: $70
Explanation:
If the division producing the component is operating below its capacity then it means that supplying the division that needs the component will not lead to opportunity costs in terms of foregone orders from outside the company for the component.
In such a case, the transfer price from one department to another should be the cost of producing the good which in this case is:
= Variable cost per unit + Fixed cost per unit
= 45 + 25
= $70