Newborn Meena sees the stuffed bear placed in her crib. At first, Meena will awkwardly wave her arm toward the bear, then she'll reach her hand out to grasp the bear, and eventually she'll be able to pick up the bear with her fingers. This illustrates what rule of motor development?
◦ The cephalocaudal rule
◦ The muscle maturation rule
◦ The proximodistal rule
◦ The internal to external rule