Tim covers his stuffed toys before bedtime to make sure they are not cold. This is an example of

A. simple reflexes: In Piaget’s sensorimotor substages, the first substage (0–1 month) is characterized by simple reflexes (e.g., rooting, sucking), so this is the correct label.
B. gross motor skills: Gross motor skills refer to large-muscle actions like crawling or walking, not the category name for newborn reflexes.
C. fine motor skills: Fine motor skills involve controlled hand/finger movements and are not the term used for newborn reflexive behaviors like rooting and sucking.
D. habits: “Habits” or primary circular reactions appear in later substages (e.g., repeating actions) rather than the initial reflexive substage.

A. reaching ability: Reaching is a prerequisite skill, but the specific precision of picking up Cheerios depends on finger control rather than general reaching.
B. gross motor skills: Gross motor skills involve large-muscle actions (sitting, crawling) and don’t explain the fine finger control needed for Cheerios.
C. the palmer grasp: The palmar (palmer) grasp uses the whole hand and is an infant reflex; it does not allow precise thumb–finger picking.
D. the pincer grip: The pincer grip (thumb and forefinger opposition) enables picking up small objects like Cheerios and matches the description.