Teacher: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).
Teacher: Now, understand the problem? Solve this instance: Paragraph: For a given medium, sound waves travel more slowly at lower temperatures.
 Question: Eric moved to Alaska from Arizona. The lower temperatures overall mean that sound travels 
 Choices: A)faster 
B)slower
Student:
slower