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: As a boy grows to a man and his larynx grows smaller, his voice gets 
 Option1: deeper 
 Option2: higher. 
 Explanation: The voice becomes deeper as the larynx in the throat grows larger.

SOLUTION: higher.

PROBLEM: Question: Sarah puts two pieces of candy into water. The piece that will break down the fastest is the one that is 
 Option1: larger 
 Option2: smaller 
 Explanation: Smaller pieces dissolve more easily.

SOLUTION: smaller

PROBLEM: Question: If Mary is playing music in her room and the heater starts working, causing the temperature to rise, what happens to the speed of the soundwaves her radio is generating? 
 Option1: increases 
 Option2: decreases 
 Explanation: For a given medium, sound has a slower speed at lower temperatures.

SOLUTION:
increases