Abstract nouns are essentially nouns that can be interpreted differently by different individuals, such as beauty or maturity. Going by this definition, the abstract noun in the given sentence should be "loyalty".
The answer is A. <span>prevents people from forming real relationships.
This is stated by the text. It explains social media can prevent us from getting a lot of face-to-face time and prevent us from obtaining real relationships and friendships.
Hope this helped. Have a great night!</span>
