This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Physiology
[{'content': 'In an isotonic contraction of the muscle: \nSelect and explain. \nA. The muscle moves a load through a distance, B. The muscle is not able to move the load, C. The latent period of contraction is shorter than isometric contraction, D. The length of muscle is increased', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]