The Fact That Chimpanzees and Other Nonhuman Primates Engage in Masturbation

Multiple Choice

The fact that chimpanzees and other nonhuman primates engage in masturbation and same-sex sexual activity suggests that

A) human sexuality is completely determined by biology.
B) it is immoral for humans to engage in such activities.
C) flexibility in sexual expression is part of humans' primate heritage.
D) heterosexual sex is more common among humans than among other primates.
E) human sexuality is completely determined by culture.