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: 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
Example Output: they will slow down

Example Input: Paragraph: Warming up exercises increases the blood flow to the muscles and increases the heart rate.
Question: James spent 30 minutes exercising while Mary spent only 10 minutes exercising. Which person had the higher heart rate?
Choices: A)Mary
B)James
Example Output: James

Example Input: Paragraph: Smaller tributary glaciers, like tributary streams, flow into the main glacier in their own shallower U-shaped valleys.
Question: Sandra sees a huge glacier, and notes that it has smaller tributary glaciers flowing into it, in valleys that are
Choices: A)shallow
B)deep
Example Output:
shallow