Which of the Following Did Peter Bearman Discover About Sexually

Which of the following did Peter Bearman discover about sexually active high school students when investigating why the rates of STIs were so high?

A) Most young people have a sufficient understanding of sexuality to make good choices.
B) The pregnancy rate among teenagers in North America is much lower than the rate observed in European countries.
C) Early sexual activity is unrelated to the risk of exposure to sexually transmitted diseases.
D) Half of the sexually active high school students were linked to each other through common partners.
E) Few women are victims of sexual violence in North America.