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: The larger the animal, the heavier the exoskeleton, making movement more difficult.
 Question: When an animal is larger it needs to have a 
 Choices: A)smaller skeleton 
B)larger skeleton
larger skeleton