When caught off guard by the crash of thunder, 2-month-old Daiane arches her back, flails her arms outward, and then quickly brings them together in an embrace. Which of the following reflexes did the loud crash of thunder trigger?

a. Babkin reflex

b. rooting reflex

c. Babinski reflex

d. Moro reflex

d. Moro reflex

Explanation:

Moro reflex

It is an reflex in infants, that develops between the 25 to 30 weeks of the gestation and usually get disappeared between 3 to 6 months of the age.

It is the response to the sudden loss of the support and have three components, i. e., crying, pulling the arms in, spreading out the arms.

Hence, from the information of the question, the reflex involved is, Moro reflex.