A Common Aspect of Having a Cold Is Nose Congestion

A common aspect of having a cold is nose congestion ("stuffy nose") . Air is not able to flow past your olfactory receptors, so you cannot detect smells. When eating, it is olfactory receptors, and not taste receptors, that detect the smells of your food and relate those to your brain as flavors.
-Suppose you have a bag of assorted flavors of candy. You close your eyes, hold your nose, pull out a piece of candy, and eat it. Then you try to describe the candy's flavor. How accurate do you think your prediction will be?

A) very accurate, because your taste receptors can detect multiple tastes at one time
B) not very accurate, because you cannot fully experience the flavor of the candy
C) not very accurate, because the production of glutamate will be decreased
D) very accurate, because holding your nose heightens sensitivity of your taste receptors