Which of the Following Correctly Summarizes One Major Finding from the Cross-Species

Which of the following correctly summarizes one major finding from the cross-species perspective on human sexuality?

A) Male-male and female-female sexual behavior is only found in humans and has not been observed in any non-human animal species.
B) Foreplay is a uniquely human behavior, with no analogue found in any species of mammal, including the great apes and lower primates.
C) The vast majority of animal copulation takes place in a face-to-face position, much like the primary sexual position of humans.
D) The "higher" the species of mammal that is observed, the more likely their sexual behavior will be controlled by learning and experience rather than instinct.