A student is writing an argumentative article for class and wants to revise it to add supporting evidence. Read the paragraph from the student’s article and answer the question that follows. Among the many good reasons for schools to opt for a later starting time is that high school students are exhausted. Homework, sports, jobs, and social activities all compete for students’ after-school hours, which often extend late into the night. The reality, then, is that most teens do not get enough sleep. A high school that changes its starting time from 7:00 a. m. to 8:00 a. m. is likely to see improvements in student attendance and performance.
Which sentence provides the BEST support for a claim made in the paragraph?

A
A national survey found that adolescents who get insufficient amounts of sleep are more likely than their peers to get lower grades, while 80 percent of adolescents who get an optimal amount of sleep say they’re achieving As and Bs in school.

B
Researchers found that adolescents who drink two or more caffeinated beverages daily are more likely to get an insufficient amount of sleep on school nights and think they have a sleep problem.

C
A high school in Prima Vista, CA, reported that after moving its opening bell later, to 8:15 a. m., students were more likely to arrive at school on time and were less likely to be recommended for summer school to make up missed classes.

D
In one recent study, 90 percent of parents polled believe that their adolescent is getting enough sleep at least a few nights during the school week.