Given the task definition and input, reply with output. 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: Anaerobic exercises cause muscles to get bigger and stronger.
 Question: Ron went to the gym and lifted weights as usual. If he stops lifting weights, his muscles will likely 
 Choices: A)grow 
B)shrink
shrink