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.

[EX Q]: Question: Dan is swimming into shallower water. The water the shallower he goes will be 
 Option1: younger 
 Option2: older 
 Explanation: Deeper aquifers typically contain older 'fossil water.'
[EX A]: younger

[EX Q]: Question: John is in the hospital due to losing too much blood. When he receives a blood transfusion, his blood pressure 
 Option1: decreases 
 Option2: increases 
 Explanation: As blood volume in the body increases, blood pressure increases.
[EX A]: increases

[EX Q]: Question: If Milo is adjusting the pH of his pool and decreases it, what happens to how basic the solution in the pool is? 
 Option1: increases 
 Option2: decreases 
 Explanation: For bases we can state the folllowing: The higher the pH of a substance, the more basic it is.
[EX A]:
decreases