Question

a group of lions is chasing a zebra. the lions are most likely responding to wh
the external stimulus of fear

the internal stimulus of fear

the external stimulus of hunger

the internal stimulus of hunger

mark this and return
save and exit

Explanation:

Hunger is an internal physiological state. Lions chasing a zebra are responding to their internal need (hunger) for food. Fear would be more relevant for the zebra's response, not the lions'. External stimuli are from the outside environment (e.g., a loud noise), but hunger originates internally.

Answer:

the internal stimulus of hunger