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.

Q: Question: If Mona is producing sound waves by listening to her radio at night and she turns up the volume, what happens to the amount of energy being produced by the radio? 
 Option1: increases 
 Option2: decreases 
 Explanation: A higher-frequency wave has more energy than a lower-frequency wave with the same amplitude.

A: increases
****
Q: Question: Mona loves to travel the world. She has been to nearly every country. If she notices that some countries appear to be warmer then others, what can she determine about their proximity to the equator? 
 Option1: farther away 
 Option2: closer 
 Explanation: Areas near the equator are warmer than areas near the poles because they receive more direct sunlight.

A: closer
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Q: Question: A fast-moving river that carries more sediment will cause _____ erosion. 
 Option1: less 
 Option2: more 
 Explanation: The bigger the waves are and the more sediment they carry, the more erosion they cause.

A:
more
****