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: Jeffrey increases the number of carbon atoms to a natural gas hydrocarbon in a lab. The isomers 
 Option1: increase 
 Option2: decrease 
 Explanation: As you increase the number of carbon atoms in a hydrocarbon, the number of isomers quickly increases.
Example Output: increase

Example Input: Question: If you tried to push a sack of unpopped popcorn or a sack of popped popcorn, both of the same volume, would it be easier to push the 
 Option1: sack of unpopped popcorn 
 Option2: sack of popped popcorn? 
 Explanation: Its harder to overcome friction between heavier objects and the floor than it is between lighter objects and the floor.
Example Output: sack of popped popcorn?

Example Input: Question: A smoker's body works _____ just to get needed air. 
 Option1: less 
 Option2: more 
 Explanation: When a person smokes there are chemicals released by the tobacco that enter the lungs. Because the lungs have to work harder to remove the chemicals, the body has to work harder to get the air needed to survive.
Example Output:
more