You Were Not Hungry but as You Pass by the Bakery

Multiple Choice

You were not hungry but as you pass by the bakery on your way home,you smell freshly baked bread.Immediately,your mouth begins to water and you feel like eating.What happened?

A) The smell of the bread triggered the release of insulin.
B) The smell of the bread caused a temporary drop in leptin levels.
C) Your sensory cortex overrode the hunger centers in your brain.
D) You immediately released glucagon from your liver.