Definition: 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: Paragraph: The more mass a moving object has or the faster its moving, the greater its momentum.
 Question: A heavy boulder begins rolling down a hill and a beach ball rolls down alongside it. Which object will have more momentum as it rolls? 
 Choices: A)boulder 
B)beach ball
Output:
boulder