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 a lens loses its curvature, it will refract _____ light. 
 Option1: more 
 Option2: less 
 Explanation: The more curved the surface of a lens is, the more it refracts light.

SOLUTION: less

PROBLEM: Question: Dan hits a car with his car. Dan was going only twenty miles an hour, and the other car was stopped. If Dan had hit the car going forty miles an hour, the stopped car would be moved 
 Option1: more 
 Option2: less 
 Explanation: The harder the batter hits the ball, the greater will be its acceleration.

SOLUTION: more

PROBLEM: Question: If there were less dissolved carbon dioxide in ocean water, the ocean's rate of acidity would 
 Option1: increase 
 Option2: decrease 
 Explanation: With higher levels of dissolved carbon dioxide in ocean water, the water becomes more acidic.

SOLUTION:
decrease