Outside is the word acting like an adverb
The correct answer would be B) No because there is only one negative in the sentence and that would be ''aren't'' since that means are not, so since that's only one, and not two, its not a double.
Explanation:
social media appears to have a range of benefits. It provides a way for many of us to connect with others. We can support other people and feel supported by them. It may even be a useful way for those with social anxiety and those who have a hard time with face-to-face interactions to connect with others.