33. Which of the following sentences, if placed before sentence 1, would best introduce the topic
to the audience and help set up the main
argument of the passage?
(A) The Centers for Disease Control and
Prevention (CDC), originally known as
the Communicable Disease Center, is a
federal agency that was founded in 1946.
(B) According to a recent report from the
Centers for Disease Control and
Prevention (CDC), Americans are not
getting enough sleep.
(C) In 2015 the Centers for Disease Control
and Prevention (CDC) issued a study
indicating that wearable technology such
as fitness trackers are not hazardous to
people's health.
(D) When I woke up the other morning and
checked my fitness tracker, I was
disappointed to see that I only got five
hours of sleep the night before.
(E) A recent study by researchers from Korea
and the United States examined the
accuracy of a number of different fitness
trackers that are commonly used to
measure sleep patterns.