Respuesta :

The answer is:

Brutus. This man was one of Caesars main associates. He was one of the people that murdered Julius Caesar. So in short terms, the answer is: Brutus.

I hope this helps :D  
The character who is not considered minor in The Tragedy of Julius Caesar is Brutus. He was the man who was the main associates of Caesar. But in the irony of this, he betrayed Caesar because he was the one who caused his death. So the answer would be letter D.