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: Will's spaceship flew further and further from the sun. The temperature _____ over time. 
 Option1: increased 
 Option2: dropped 
 Explanation: The stratosphere gets most of its heat from the Sun. Therefore, its warmer closer to the Sun.

Output: dropped


Input: Consider Input: Question: The the planets are colder than sun because they are 
 Option1: less massive 
 Option2: more massive 
 Explanation: An object with more mass has greater thermal energy than an object with less mass because it has more atoms.

Output: less massive


Input: Consider Input: Question: Dana had her cancer found in a very late stage. It is likely _____ to treat than if it had been detected later. 
 Option1: easier 
 Option2: harder 
 Explanation: The sooner cancer is detected the easier it is to treat.


Output: harder