Which topic sentence would best fit the following paragraph? A recent study tested the brain activity of people who had
been kept awake for 24 hours. Doctors were surprised
when they saw that people were able to use different parts
of their brain when they were tired. Researchers say it is
good news that the brain can change and use different
parts when one part is tired. However, the brain will
eventually shut down without enough rest.
A. People who do not get a good night's sleep can think clearly the
next day, but they shouldn't make it a habit.
B. Most people agree that getting enough sleep is important for
staying healthy
C. A recent study compared how the brain works in well-rested
versus tired people, and the results are surprising.
D. It is better to take two four-hour naps in a day than to sleep for
eight hours at a time, doctors say.

The answer is Paragraph A.

Explanation:

B. stated that most people agree getting enough sleep is healthy but no one mentioned getting enough sleep or having people agree.

C. stated that they compared well-rested people and tired people, but the paragraph only stated them studying tired people.

D. stated taking hours of sleep at a time. In the paragraph it did not mention any recommendations of sleep hours.

Explanation:

The answer is clearly C. It starts off by saying that exact same thing and then expands on the theme.

Naps were never considered. Not D.

The paragraph never talks about what is healthy and what isn't. Not B.

And on general principles it is not A. It never says what makes a good habit and what does not. There is no moral view on the topic. A however is your second best answer.

there is no excerpt.

put the excerpt in the comments and ill answer.