The reflex that causes the baby’s toes to spread when the sole of the foot is stroked is–

Correct option is A

Sol. The Babinski reflex is a normal primitive reflex seen in infants up to 1 year of age. When the sole is stroked from heel to toes, the big toe dorsiflexes and the other toes fan out. It disappears as the child matures. In older children or adults, its presence is a sign of neurological damage.
Explanation of each option:
· (a) Babinski reflex – Correct Answer. A diagnostic indicator of normal neurological development in infants. Persistence beyond 1 year suggests CNS pathology.
· (b) Rooting reflex – Triggered when the baby’s cheek is stroked; the infant turns toward the stimulus to suck. Important for breastfeeding.
· (c) Moro reflex – A startle reflex where the infant flings out arms and legs when startled by loud noise or movement. Seen in the first 4–5 months.
· (d) Sucking reflex – Elicited when an object touches the roof of the mouth; essential for feeding. It does not involve foot movement.