They are expected to repeat what their teachers say.
Hope this helps!
I believe it was A; Necessary and Proper Clause
I am sorry if this was incorrect
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It proved that the world was round to all the people who didn't believe so then.
A. 1967/1968
The other answers weren't even during the time of the Vietnam Conflict, whereas Option A even coincides with protests close to Kent State in 1970.
I believe the answer is A. that's the only one that makes sense. I'm sorry if it's wrong.