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.

[EX Q]: Question: When two pieces of metal are rubbing together and oil is added between them the friction 
 Option1: decreases 
 Option2: increases 
 Explanation: To reduce friction, oil is added to the engine.
[EX A]: decreases

[EX Q]: Question: Fred fills two buckets with the same amount of water. He puts a melon in one bucket and an orange in the other. In which bucket will the water rise the highest? 
 Option1: the one with the orange 
 Option2: the one with the melon 
 Explanation: So more water is displaced by a bigger body than a smaller one.
[EX A]: the one with the melon

[EX Q]: Question: If Mona is broadcasting on her shortwave radio and she decreases the wavelength, what happens to the frequency of the waves? 
 Option1: increase 
 Option2: decrease 
 Explanation: As wavelength increases, frequency decreases.
[EX A]:
increase