Which of These Hypotheses in Evolutionary Psychology Is Most Controversial?​

Which of these hypotheses in evolutionary psychology is most controversial?​

A) Kittiwake chicks have evolved a tendency to remain motionless until old enough to fly.
B) ​We get goose bumps when we are cold because the response helped our ancestors.
C) ​Human infants' grasp reflex is an evolutionary carryover from monkeylike ancestors.
D) ​Men seek multiple sex partners because doing so can spread their genes.