If the Human Brain Didn't Have So Many Deep Crevasses

Multiple Choice

If the human brain didn't have so many deep crevasses and wrinkles in the cortex, then the:

A) amygdala would not be able to regulate the person's initial emotional responses.
B) fetus would die prenatally because the hypothalamus couldn't regulate the autonomic nervous system.
C) newborn's head would be too large to fit through the mother's birth canal.
D) person would have difficulty performing bodily functions that are not consciously willed.