Which fact best supports the US surgeon general's claim that kids 13 years old and younger should not use social media?

SELECT AN ANSWER
"The US surgeon general is the nation's doctor . . . [they work] to help keep Americans safe and informed." (paragraph 3)

"So when Surgeon General Vivek Murthy said he believes kids 13 and under should not be on social media, it got people's attention." (paragraph 4)

"'I personally, based on the data I've seen, believe that 13 is too early,' Murthy told CNN Newsroom." (paragraph 5)

"According to the study, frequently checking social media can change how an adolescent’s brain develops." (paragraph 6)