The answer is "WAS". Hope this helps.
Something that is necessary is 'needed'.
A- He believes that, in life, every individual must confront fear in some form or another.
Its just a saying to say somethings cool lol, pog was originated from twitch and used to relate to play of the game but now its random lol, like “oh yes pog” “oh thats poggers”
I believe the answer to be C.) Literal and concrete