You will be given a definition of a task first, then some input of the task.
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).

Paragraph: For a given medium, sound has a slower speed at lower temperatures.
 Question: When animals are moving in the cold they are 
 Choices: A)faster 
B)slower
Output:
slower