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.

Input: Consider Input: Question: David is getting ready to fly into space on a rocket. As the rocket shoots upwards, part of the mass attaches, allowing the rocket to go 
 Option1: higher 
 Option2: lower 
 Explanation: By using multiple stages, empty fuel containers could drop away. This reduced the mass of the rocket so that it could fly higher.

Output: lower


Input: Consider Input: Question: Given two equal measures of water by volume, which would be lighter 
 Option1: ocean water 
 Option2: distilled water? 
 Explanation: Water becomes more dense when it is colder and when it has more salt.

Output: distilled water?


Input: Consider Input: Question: Milo is swimming in the pool at the shallow end. Suddenly he decides to move to the deep end. What happens to the water as he swims shallower? 
 Option1: gets warmer 
 Option2: gets colder 
 Explanation: Water also gets colder as you go deeper.


Output: gets warmer