A Mother Watches as a Neonate Cries, Spreads His Arms

A mother watches as a neonate cries, spreads his arms, and draws them in again in response to being pulled up and laid back down. She asks the nurse what is going on with her baby. What is the best explanation for this response?

A) "Your baby is experiencing gas, and this movement helps to expel it."
B) "Your baby is demonstrating a normal CNS response called the Moro reflex."
C) "Your baby is experiencing the signs and symptoms of an abnormal neural response to being startled."
D) "Your baby's actions are normal automatic movements to help maintain core body temperature."