According to Pereira's Study on Exercise and Neurogenesis, Discussed in Psych

According to Pereira's study on exercise and neurogenesis, discussed in Psych for Your Life: Maximizing Your Brain's Potential,:

A) experience has minimal effect on brain functions or structures.
B) exercising regularly decreases the release of endorphins in the brain.
C) while exercise promotes the growth of new neurons in the brains of mammals, findings are mixed in humans.
D) exercise promotes the growth of new neurons in the human brain, just as it does in other mammals.