Sociologists Have Studied Social Media Use and Loneliness for Some

Multiple Choice

Sociologists have studied social media use and loneliness for some time.What can most definitely be claimed,based on the research by Primack and colleagues?

A) Social media use causes loneliness.
B) Loneliness causes increased social media use.
C) Social media use and loneliness are correlated.
D) Social media use correlates with dozens of variables,one of which is loneliness.