Which sentence in the section "Brains" BEST supports the conclusion that the nervous system performs essential jobs in the
body?
(A)
(B)
It has a wrinkled appearance due to bulges and depressions known as gyri and suici.
It is divided into four cortex lobes: frontal lobes, parietal lobes, occipital lobes and temporal lobes.
The midbrain is the portion of the brainstem that connects the hindbrain and the forebrain.
This structure is responsible for controlling such autonomic functions as breathing, heart rate and
digestion.