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: If Jim is an endotherm would his body give off _____ heat if the blood flow to the surface of his body were decreased? 
 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: less

PROBLEM: Question: As Cindy swam closer to the ocean surface, it got lighter and _____. 
 Option1: warmer 
 Option2: cooler 
 Explanation: Water density increases as salinity and pressure increase, or as temperature decreases.

SOLUTION: warmer

PROBLEM: Question: Evan surfs the waves on a day when it is windy, and then he goes back the next day when there is no wind. Which waves likely had more energy? 
 Option1: windy 
 Option2: no wind 
 Explanation: The stronger the winds are blowing, the larger the waves are and the more energy they have.

SOLUTION:
windy