What Unique Structural Adaptations Are Found in the Mammalian Brain

Multiple Choice

What unique structural adaptations are found in the mammalian brain that allowed mammals to become adept at higher mental activities?

A) A higher degree of crevasses and folds in the neocortex that increases the surface area of the brain.
B) An increased number of blood vessels that increases the vascularization of the brain.
C) An enlarged pons.
D) A cranium that will protect the brain from damage.
E) A more direct connection to the spinal cord for faster conduction of neural impulses.