Answer:
C.
Explanation:
anorexia is an emotional disorder characterized by an obsessive desire to lose weight by refusing to eat.
Headaches are often a sign of dehydration. When somebody stays out in the sun too long and starts getting dehydrated their head will start pounding because their is not enough water to keep you from thinking about being cooled down. So the answer would be dehydration.
Hope this helps!
Have a nice day!