In the movie version, it was never stated why Boo is stuck
in the house. There were only rumors.
However, in the book “To Kill a Mockingbird” it was stated there that Boo was locked
in the house because he committed a small crime when he was young and was out
in jail.
Your answer will be A. A Dissent is "the expression or holding of opinions at variance with those previously, commonly, or officially held."
Hope this helped!
-Edge