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: Eric has a soccer ball and kicks it into a rock of roughly the same size. The rock doesn't move and the ball bounces away. The rock is _____ dense than the ball. 
 Option1: less 
 Option2: more 
 Explanation: The more tightly packed the particles inside the material are, the more dense we say they are.
Example Output: more

Example Input: Question: Rich was examining a cliff face. Which part of the cliff is younger, geologically speaking? 
 Option1: the base 
 Option2: the top 
 Explanation: The upper rock layers are much younger.
Example Output: the top

Example Input: Question: If Jon adds more weight to his car, he will need to use _____ energy. 
 Option1: less 
 Option2: more 
 Explanation: Lighter, more streamlined vehicles need less energy.
Example Output:
more