The true answer is B: The main character in a story is also called the protagonist; main characters are generally dynamic characters. The expression "dynamic character" allude to the fact that that this kind of literary or dramatic characters undergo an important inner change, as an change in personality or attitude. The expression "developing character" is also used to describe this kind of characters. On the other hand, "static characters" are literary or dramatic characters who remain basically unchanged to the end of the work.
