It is C. Compound sentence. This is because it is far from simple, and even thought it might seem as a run on sentence, it is not, as run on sentences are sentences connected with a comma, yet this one is connected with a semi-colon, which is a correct way of connecting sentences.
His character is filled with vengeance, when somebody touches him he trys to kill them
That IS true!!! if you never step forward or make a stand, you can never achieve!!!
After the helping verb ,if it's an adverb of frequency :)
