The nurse practitioner is performing a neurological assessment on an infant and places a finger in the infant's hand. The infant flexes all fingers to grasp the practitioner's finger. This maneuver assesses the:

Rationale: A. The plantar grasp reflex is elicited by stroking the sole of the infant’s foot, causing the toes to curl, not the fingers. B. The palmar grasp reflex is tested by placing a finger in the infant’s palm, resulting in flexion of all fingers to grasp it. This reflex is present at birth and typically disappears by 5–6 months of age. C. The Landau reflex involves the infant lifting the head and arching the back when held prone, unrelated to grasping. D. The Galant reflex is elicited by stroking the lateral trunk, causing the infant to laterally flex toward the stimulus; it does not involve hand grasping.