Answer:
Rooting
Step-by-step explanation:
In psychology and medicine, a reflex is a muscle reaction that happens in an automatic way as a response to an stimuli.
Babies are born with some reflexes (as some kind of survival skills) and they start disappearing as they grow older. It is important to know the typical age for a reflex to disappear because the fact that some reflexes persists after some age can be a sign of problems in the neurological development or brain damage.
One of these reflexes is the Rooting reflex, which makes the babies turn the face towards the touch and open the mouth (as in rooting) whenever the cheek or lip is touched.
In this example, baby Beth is touched on the cheek and she turns her head toward the touch and opens her mouth. Therefore, this would be an example of rooting reflex.