Question

A three-month old baby named bryan smiles even when he is alone. scientific research has suggested that his smile should be attributed to _____. the reinforcements from his immediate surroundings effective training by his mom his innate motor programs from birth his motivation to learn something new

Answer 1

scientific research has suggested that his smile should be attributed to  his innate motor programs from birth
A motor program is a signal that transferred from the transmitter in our brain as a response from the activity in our nervous system. This process determine how we perform an action in various scenarios