Cues from inside an animal's body can cause the animal to respond with certain behaviors. These cues are called internal stimuli. Which of the following are behavioral responses to internal stimuli?
1. A deer responds to thirst by searching for water to drink.
II. A cheetah responds to hunger by hunting for a gazelle to eat.
III. A child responds to sleepiness by taking a nap.
IV. A bear responds to seasonal changes by hibernating.
OA
I and II only
OB. I, II, III, and IV
OC. I, II, and Ill only
OD. III and IV only