6. Which of the following sentences from the reading best expresses the
central point of the selection?
A. "Dr. Rosenthal is a pioneer in the study of how people send
and receive non-verbal messages...called 'body language."
B. "Every would-be Romeo or Juliet knows that the language
of courtship goes far beyond words."
C. "Researchers trace various kinds of body language back to
our roots in the animal world."
D. "Because nonverbal communication, based in our animal
roots and childhoods, is universal, it is useful to become more
aware of it."