Please responded violently to the protesters
Protesters became aggressive in expressing and their views
I'm not a 100% sure but I think the last one may be correct as well that the protesters were angry about the war in Vietnam
Answer:
Taxation was a pivotal cause of the French Revolution. ... It was excessive because France had become one of the highest taxing states in Europe, chiefly ... France's common people, who could least afford to pay, believed they were ... affected merchants, traders and businessmen more than individuals.
The first one.
The later ones all have some sort of relevant 'life lesson' intertwined in them.