TASK DEFINITION: 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.
PROBLEM: Question: Devon's cat, Fluffy, is looking for a nice warm spot to lay out in the sun. Because of how the sun heats the earth, and how some heat radiates into the air, the cat laying on the ground, rather than high up in a tree branch, would keep the cat 
 Option1: cooler 
 Option2: warmer 
 Explanation: The surface is heated by the Sun and some of that heat radiates back into the air. This makes the temperature higher near the surface than at higher altitudes.

SOLUTION: warmer

PROBLEM: Question: Two hands are rubbing together fast, two other hands rub slowly, so the faster hands will make heat in amounts that are 
 Option1: larger 
 Option2: smaller 
 Explanation: Friction causes the molecules on rubbing surfaces to move faster, so they have more energy. This gives them a higher temperature, and they feel warmer.

SOLUTION: larger

PROBLEM: Question: Eric went outside in the summer. He is _____ likely to give off heat than if it was winter. 
 Option1: more 
 Option2: less 
 Explanation: On a hot day, an endotherm may give off more heat by increasing blood flow to the surface of the body.

SOLUTION:
more