You are given a question or fill-in-the-blank question, two answer options (Option1 and Option2) and an Explanation. Your task is to find the correct answer (return the string of the correct option, not option1/2) for the given question from the given options and using explanation.

Q: Question: Something with less hydrogen ions would have what pH value? 
 Option1: high 
 Option2: low 
 Explanation: With a higher the concentration of hydrogen ions, a solution is more acidic and has a lower pH.

A: high
****
Q: Question: If you defocus the sun's rays with a lens they are 
 Option1: weaker 
 Option2: stronger 
 Explanation: The more focused the Suns rays are, the more energy an area receives and the warmer it is.

A: weaker
****
Q: Question: Sean is trying to see how fast the water molecules are moving in a container of water. He observes that the molecules are moving very quickly, so the temperature must be 
 Option1: cool 
 Option2: warm 
 Explanation: When a volume of water is cooled, the molecules move less vigorously, so same number of molecules takes up less space and the water is denser.

A:
warm
****