You are given a short paragraph, a question and two choices to answer from. Choose the correct answer based on the paragraph and write the answer(not the key).

Example Input: Paragraph: Wave frequency can be measured by counting the number of crests or compressions that pass the point in 1 second or other time period. The higher the number is, the greater is the frequency of the wave.
 Question: If Milo increases the number of crests of his wave, what happens to the frequency of his wave? 
 Choices: A)increases 
B)decreases
Example Output: increases

Example Input: Paragraph: Rougher surfaces have more friction between them than smoother surfaces.
 Question: If Mona is comparing sandpaper with notebook paper and she determines that sandpaper is rougher then notebook paper, which object has less friction? 
 Choices: A)sandpaper 
B)notebook paper
Example Output: notebook paper

Example Input: Paragraph: For a given medium such as air, sound has a slower speed at lower temperatures.
 Question: If Mary is blowing an air horn underwater and she raises the temperature of the water, what will happen to the speed of the sound waves generated by the air horn? 
 Choices: A)increase 
B)decrease
Example Output:
increase