The __________ consists of three structures:

__________, __________, and __________.
a. limbic system; the thalamus, the hypothalamus, the pituitary gland
b. brain stem; the medulla, the pons, the midbrain
c. endocrine system; the hypothalamus, the pituitary gland, the target cells
d. cerebellum; the parietal lobe, the brain stem, the basal ganglia
e. amygdala; the occipital lobe, the temporal lobe, the parietal lobe

b. brain stem; the medulla, the pons, the midbrain