A nurse is preparing to assess reflexes in a 3-day-old newborn who is currently asleep. Which reflex is most appropriately tested during the newborn's sleep state to evaluate neurological function?

A. Sucking reflex: The sucking reflex requires the newborn to be awake and alert to coordinate sucking motions, so it cannot be reliably assessed while the infant is asleep. B. Rooting reflex: The rooting reflex also requires the newborn to be awake and responsive, as it depends on the infant turning the head toward a tactile stimulus near the mouth. C. Plantar grasp reflex (Babinski): The plantar grasp reflex can be assessed even when the newborn is asleep, as it involves applying gentle pressure to the sole of the foot, causing toe flexion. It is a reliable indicator of neurological integrity in the sleeping state. D. Moro (startle) reflex: The Moro reflex requires the infant to be awake and responsive to sudden stimuli or a gentle drop sensation, making it unsuitable for assessment during sleep.