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.

Ex Input:
Question: Jeff found some very dense water. He knows it is dense because it takes up _____ space than less dense water. 
 Option1: more 
 Option2: less 
 Explanation: More dense water takes up less space than less dense water.

Ex Output:
less


Ex Input:
Question: Jan had a very low heart rate, but was perfectly healthy, indicating that her heart expels blood in amounts that are 
 Option1: greater 
 Option2: lesser 
 Explanation: When the heart expels more blood with each stroke, the heart has to beat less often in order to maintain the same volume of blood flow.

Ex Output:
greater


Ex Input:
Question: Tim's university upgraded to a new telescope with a mirror that was a foot large in diameter than the old one. Tim will notice that he will be able to see details more clearly on celestial bodies using the 
 Option1: old telescope 
 Option2: new telescope. 
 Explanation: The larger the light collecting area, the more light a telescope gathers and the higher resolution (ability to see fine detail) it has.

Ex Output:

new telescope.