When do you add a ‘e’ and a ‘s’ to a word to make it plural?

Which statement best completes its flow of reasoning

Which statement best represents a claim? a.people who do not exercise their right to vote are truly wasting a precious democratic privilege. b.the benefits of mandatory voting in the united states far outweigh the potential drawbacks. c.some countries require people who do not vote in certain elections to pay a moderate fine. d. i would never want to live in a country where it was mandatory to vote in political elections.

Asap! what statement about congressional representatives is true? -they focus on what is best for government -they focus on constituents and what they need -they are members of the upper house of congress -they don't need to focus on reelection