Luke reluctantly aims a pistol and shoots anakin in order to prevent anakin from hurting an innocent person. what type of aggression is luke engaging in? hostile instrumental frustrated emotional

The answer from the given choices is "instrumental".

Instrumental aggression alludes to an aggressive conduct which is planned to accomplish an objective. It is made against someone else in whom the hostility is utilized as a methods for securing some reward or to accomplish an outer objective, for example, a triumph.