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: Compared to sound waves travelling through a cup of boiling water, would sound waves travelling through a cup of ice water move 
 Choices: A)slower 
B)faster?
Student:
slower