Answer:
b. $10
Explanation:
The computation of the cost per shirt is shown below:
= (The cost of its factory, raw materials, and labor) ÷ (production level)
= $500,000 ÷ 50,000 shirts
= $10
Since we have to compute the cost per shirt before the increase in production level so we do not consider the increased production level and increase labor and raw material expense.