Idon't understand two answers number 4 plz

Production of electricity by water power

Which statement from the tinker v. does moines court decision best supports the reasoning that the conduct of the student protesters was within the protection of the free speech clause of the first amendment

What is a generalization? a. a series of events that make up what happens in a story b.hints or clues that tell you what is going to happen in a story c.the final resolution or event that ties up loose ends in a story d. a simple statement about something complicated