Given below are Legal Principles followed by a Factual Situation. Apply the principles followed by a factual Situation. Apply the principle to it and select the most appropriate answer for question among the four choices given.
LEGAL PRINCIPLE: A person, internally causing harm to others, is liable for battery. A person is said to have intended the harm, in so far as he brings about the harm purposefully or knowingly.
FACTUAL SITUATION: A teacher suffering from arthritis problem was moving around the class room in the course of teaching. As she was moving backwards to reach her chair, a student saw a scorpion moving underneath the chair and immediately rushed to attack the chair. Meanwhile, the teacher fell down in the process of taking her seat and broke her hips. A suit was filed against the student for battery.