You are presented with the question "Most people can survive only a few days without what?" and the following answer choices: 
- h2o
 - urea
 - CO2
 - beds
 - houses
 - air
 - NaCl
 - H20

Now knowing that most people can survive only a few days without water and h20 Bottled water was generally consumed last year, choose the best answer.


 

        H20 