if a regulation were adopted by school officials forbidding discussion of the vietnam conflict, or the expression b any student of opposition to it anywhaere on school property except as part of a prescribed classroom exercise it would be obvious that the regulation would violate the constitutional rights of students

What is the best summary of the passage

The passage discusses a hypothetical scenario where a regulation is imposed to outlaw any discussion or opposition to the Vietnam conflict on school premises, except within classroom exercises. The passage suggests that this regulation would clearly infringe upon the constitutional rights of students.

The passage suggests that if school officials were to adopt a regulation prohibiting discussion or expression of opposition to the Vietnam conflict on school property, except within prescribed classroom exercises, it would clearly violate the constitutional rights of students.

The passage explains that if school officials were to adopt a regulation prohibiting discussion or expression of opposition to the Vietnam conflict on school property, except within specific classroom exercises, it would clearly violate the constitutional rights of students.