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: When the villagers are living longer, the food source is likely 
 Option1: great 
 Option2: small 
 Explanation: More recently, the death rate has fallen because of the availability of more food and medical advances.

SOLUTION: great

PROBLEM: Question: Will waves on the ocean be larger or smaller if they are caused by wind compared to rocks? 
 Option1: larger 
 Option2: smaller 
 Explanation: A wave caused by a disturbance with more energy has greater amplitude.

SOLUTION: smaller

PROBLEM: Question: Will has two balls and pushed them closer to each other. The gravitational force between the balls 
 Option1: increases 
 Option2: decreases 
 Explanation: The gravitational force increases with mass and decreases with the distance between the bodies.

SOLUTION:
increases