The answer should be B) because social media is a long distance communication tool for people, so not C) since that's false, that's where most danger is at is online, not D) because that wasn't the original purpose, but sadly its become popular now and not A) because that's incorrect.
The quiet car can make journeys peaceful and productive
A external conflict is a struggle that pits a character against an outside force such as another character or even nature.
hope this helps :)
