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: Lana is noting that the wind lately has been very strong. Lana can now tell that the air pressures over the Earth's surface have had differences that are 
 Option1: greater 
 Option2: lesser 
 Explanation: Differences in air pressure over the surface of the Earth result in wind. The greater the differences in air pressures, the stronger the wind.
Example Output: greater

Example Input: Question: Compared to an item with few carbon atoms an item with many carbon atoms will boil 
 Option1: faster 
 Option2: slower 
 Explanation: Alkanes with more carbon atoms have higher boiling and melting points, so some of them are solids at room temperature.
Example Output: slower

Example Input: Question: Reid notices that tributary glaciers make U-shaped valleys when flowing. A small valley was likely caused by a _____ tributary glacier. 
 Option1: small 
 Option2: large 
 Explanation: Smaller tributary glaciers, like tributary streams, flow into the main glacier in their own shallower U-shaped valleys.
Example Output:
small