After Conducting a Market Research Study, Stewart Manufacturing Decided to Produce

After conducting a market research study, Stewart Manufacturing decided to produce a new interior door to complement its exterior door line. It is estimated that the new interior door can be sold at a target price of $120. The annual target sales volume for interior doors is 20,000. Stewart has a 20% expected return on sales target.
-What is the target profit margin?

A) $480,000
B) $600,000
C) $384,000
D) $360,000