Most people can survive only a few days without what?\nOptions:\n- (A) carbon dioxide\n- (B) oxygen\n- (C) h2o\n- (D) H20\n- (E) NaCl\n- (F) CO2\n- (G) soda\n- (H) urea Let's solve this problem gradually.

User
Most people can survive only a few days without water. Water is everywhere H20. Most people can survive only a few days without H20. So the final answer is (D).
Assistant