C. Combine it with a sentence fragment
Answer:
Homosexuality
Explanation:
If this is USA Test Prep there is most likely a hint button on the bottom left which will help, but in this certain instance the passage says he has a distaste for the opposite sex.
Answer:
It was in the late 1960's.
Explanation:
It was tranferred through mosquitos (like malaria) and was in the United States.