Which of the Following Is True

Multiple Choice

Which of the following is true?

A) Animals must have both a central and peripheral nervous system in order to be able to learn.
B) Animals with larger brains have higher intelligence than animals with smaller brains.
C) Only vertebrates have both a central and a peripheral nervous system.
D) The cerebral cortex takes up about the same percentage of total brain volume in humans as it does in other vertebrates.