To Assess the Babinski's Reflex of a 12-Month-Old Infant,you Stroke

To assess the Babinski's reflex of a 12-month-old infant,you stroke the plantar surface of the foot with the tip of your thumbnail from the lateral heel upward.A normal response is

A) all toes curling down.
B) toes curling down and dorsiflexion of the great toe.
C) toes fanning outward with dorsiflexion of the great toe.
D) toes fanning outward with plantar flexion of the great toe.