I think the correct answer is D
Polar because it always is below 32 degrees and has no rainfall
Well, think of it this way.
When you do not eat that much, your body fat lowers little by little, but considering that this is a question, I'd say starvation. Think of it as when you fast (Not eating all night say to go to a doctors appointment) your body stores the fatty acids to make ketone! The ketone will build a bloodstream that flows to the brain and other parts of the body!
To sum it up, starvation.
