You are presented with the question "Caffeine can cause " and the following answer choices: 
- congestion
 - anemia
 - constipation
 - sweating
 - hives
 - energy usage
 - dehydration
 - heat energy

Now knowing that caffeine is a central nervous system stimulant and stimulants can cause overheating and dehydration, choose the best answer.


 

       dehydration  