Answer:
correct option is B. $21
Step-by-step explanation:
given data
to make = $30
variable cost = $21
fix cost = $9
selling cost = $47
solution
we get here transfer price that is express as
transfer price = outlay cost per unit + opportunity cost per unit ...............1
here outlay cost is $21 and opportunity cost = 0 because division has idle capacity
so that put value in equation 1
transfer price = 0+ 21
transfer price = $21
so correct option is B. $21