You go to a party feeling a little unsure of yourself. When you get there, you feel anxious but aren't sure why. You see a good friend you didn't know would be there and your anxiety recedes. You decide everything will be okay and start to relax. The part of your brain working hardest during this process is the:

A. parietal lobe.

B. amygdala.

C. pituitary gland.

D. cerebral cortex.

Cerebral cortex makes rational decisions…usually.