Matt and his friend Fred were watching a football game at Matt's home when they began to argue. Fred became abusive, and Matt asked him to leave. Fred refused, walked into the kitchen, picked up a knife, and said he would cut Matt's heart out. Matt pulled a gun from under the sofa, walked to his front door, opened it, and again told Fred to leave. Fred again refused. Instead, he walked slowly toward Matt, brandishing the knife in a threatening manner. Matt, rather than running out the door himself, shot in Fred's direction, intending only to scare him. However, the bullet struck Fred, killing him instantly. Charged with murder, Matt should be 
convicted, because the use of deadly force was unreasonable under the circumstances.  convicted, because he had a clear opportunity and duty to retreat.  acquitted, because he did not intend to kill Fred.  acquitted, because he was acting in self- defense and had no duty to retreat. 