Answer the following question given this paragraph: 

The boy in Figure below is taking a water break while playing outside on a hot day. If he doesn’t take in enough water to replace the water lost in sweat, he may become dehydrated. Symptoms of dehydration include dry mouth, headache, and dizziness. Dehydration can be very serious. It can even cause death.


Q: What happens if a person doesn’t take in enough water to replace the water lost in sweat?

 Choices:

- diarrhea

- fatigue

- relaxation

- dehydration

A:
dehydration
