Read this article from a health website. Do your teenagers get enough rest at night? Research indicates that teenagers need more than nine hours of sleep for optimal brain function. Teenagers who do not sleep enough may be irritable, perform badly on tests, and find it difficult to get along with friends and family. Which statement about the article is true?

AThe writer asks the audience a question.

BThe writer is talking to teenagers.

CThe writer directly mentions the target audience.

DThe audience cannot be determined.