Conversation so far:
where did Ben Carson attend high school?
Ben Carson attended the predominantly black Southwestern High School.
did Ben Carson do well in high school?
Ben Carson graduated third in his class academically.
did Ben Carson get into any trouble with the law as a teen?
As a youth, Ben Carson had a violent temper. As a teenager, I would go after people with rocks, and baseball bats, and hammers, he said in his book.
what is notable about Ben Carson's time in high school?
In high school, Ben Carson played the baritone horn in the band and participated in forensics (public speaking), chess club, and the U.S. Army Junior Reserve Officers' Training Corps program.
was Ben Carson well liked in high school?

Question: what was his major course of study?
Self-contained rewrite: what was Ben Carson's major course of study?