What was the key significance of the sex and the senses research?

What was the key significance of the sex and the senses research research finding?

A. A single gene is capable of controlling all aspects of male courtship.

B. Courtship is a complex series of events that is likely controlled by too many factors to investigate.

c. Courtship is not regulated by genetic influence at all.

D. Behavior in fruit flies is not transferable to other animals.What was the key significance of the sex and the senses research?
I would have to say B. It's an educated guess but it's the only one to me that makes sense.