Stella Is Reluctant to Have Her Daughter in Sex Education

Stella is reluctant to have her daughter in sex education class, so she is visiting with the school nurse who will teach the class. While looking over the materials Stella is surprised to see information on oral sex. "I don't see why this is necessary," Stella said. The nurse replied, "Research shows that girls who initiate oral-genital sex first, as opposed to vaginal sex first, are:

A) more likely to get pregnant.
B) less likely to get pregnant.
C) equally likely to get pregnant.
D) less likely to get a sexually transmitted infection.