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).

Input: Consider Input: Paragraph: For a given medium, sound has a slower speed at lower temperatures.
 Question: If Jim turns the thermostat down in his room while listening to music, what will happen to the speed of the sound waves in the room? 
 Choices: A)they will speed up 
B)they will slow down

Output: they will slow down


Input: Consider Input: Paragraph: Alkanes with more carbon atoms have higher boiling and melting points, so some of them are solids at room temperature.
 Question: Kathy did some experiments on two different alkanes and one of the alkanes had twice as many carbon atoms than the other. She would notice that which alkane would require a lower temperature to melt 
 Choices: A)alkane with fewer carbon atoms 
B)alkane with more carbon atoms?

Output: alkane with fewer carbon atoms


Input: Consider Input: Paragraph: The density of the atmosphere decreases with an increase in the height above sea level (altitude).
 Question: Donna is noting that the atmosphere is very dense where she's visiting, so compared to her home she must be at an altitude that is 
 Choices: A)higher 
B)lower


Output: lower