Peter and Donald were in the habit of playing practical jokes on each other on their respective birthdays. On Peter's birthday, Donald sent Peter a cake containing an ingredient that he knew had, in the past, made Peter very ill. After Peter had eaten a piece of the cake, he suffered severe stomach pains and had to be taken to the hospital by ambulance. On the way to the hospital, the ambulance driver suffered a heart attack, which caused the ambulance to swerve from the road and hit a tree. As a result of the collision, Peter suffered a broken leg. In a suit by Peter against Donald to recover damages for Peter's broken leg, Peter will 
prevail, because Donald knew that the cake would be harmful or offensive to Peter.  prevail, only if the ambulance driver was negligent.  not prevail, because Donald could not reasonably be expected to foresee injury to Peter's leg.  not prevail, because the ambulance driver's heart attack was a superseding cause of Peter's broken leg. 