Toni wrote the following paragraph in a blog about football’s impact on the brain: In a recent article published in the “Journal of the American Medical Association,” researchers described their findings from a study of university football players. Doctors scanned the brains of players and compared the scans to the brains of men the same age who had never played football.

Which feature of the blog tells you that Toni followed a formal style of writing?

A.
She chose a popular topic.
B.
She used casual language.
C.
She used exact language.
D.
She used simple sentences.