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.

Example Input: 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.'
Example Output: younger

Example Input: Question: If Mona is examining her arteries and she looks at ones that are farther away from her heart, what happens to the size of the arteries? 
 Option1: smaller 
 Option2: larger 
 Explanation: Further away from the heart, the aorta branches into smaller arteries, which eventually branch into capillaries.
Example Output: smaller

Example Input: Question: The darker someone's skin is the _____ melanin they have. 
 Option1: less 
 Option2: more 
 Explanation: However, the melanocytes of people with darker skin produce more melanin.
Example Output:
more