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: What would happen to the speed of Earth's orbit if our planet were to move closer to the Sun? 
 Option1: increased speed 
 Option2: decreased speed 
 Explanation: The Earth travels faster in its elliptical orbit when it is closer to the Sun than when it is farther away.
Example Output: increased speed

Example Input: Question: If Mona is building a new mirror and she wants it to refract less light, what should she do to the surface of the lens? 
 Option1: make it more curved 
 Option2: make it less curved 
 Explanation: The more curved the surface of a lens is, the more it refracts light.
Example Output: make it less curved

Example Input: Question: Mary is looking through her new telescope. She sees some objects in space that are exerting gravitational pulls on each other. If the first two objects are 50,000 miles apart, and the second set of objects are 100,000 miles apart from each other, then the gravitational pull of the first set of objects is 
 Option1: greater 
 Option2: less. 
 Explanation: The closer objects are, the stronger the gravitational pull between them.
Example Output:
greater