Answer:
Helpfull will be the adjective
I would say C is the answer for this one.
Explanation:
12: life line for commoners
13.started riot, especially
14.unfaur taxation, voting issues, unequal lang, estates gets all the votes, 1st and 2nd estates more votes than 3rd estates.
15. most of the population who were the 3rd estates (97%) treated people poorly with high taxes and decided to revolt