Which detail from the text is the BEST clue to the author's point of view?
A. It's time for schools to make a change to better suit
the inner clocks of teenagers.
B. When I was younger, getting eight to ten hours of sleep
each night was pretty easy to do.
C. According to sleep experts, more than three hours of
extra sleep on weekends doesn't help me.
D. Your body is naturally programmed to sleep at night
and wake in the morning.