A verb is an action. Such as run, read, breath, etc
So, the verb in this sentence is "take"
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.
Answer: I'm gonna guess simile since you didn't show us the paragraph.