Answer:
B. Moro's
Explanation:
Moro's also referred to as startle reflex happens to infants who are still less than 3 months old. It occurs when the infant feels a certain loss of support, this triggers response from the infant to either spread out the arm, pulling the arm and crying as outcome of the reflex.
When a baby have spent more time in the new environment its birthed in, it will eventually get used to it and stop the startle reflex.
