Why Does Surovell's Criticism Center on Social Media Rather Than

Why does Surovell's criticism center on social media rather than smartphones?

A) Social media is a much graver problem than smartphone use
B) Social media is a major problem for college students in particular
C) Social media is intrinsically good while smartphones are only instrumentally good
D) There's less evidence that smartphones tend to make their users less happy
E) There's no evidence that smartphones are bad for their users