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: Ophthalmology
[{'content': 'Yoke muscle pair is \nSelect and explain. \nA. Rt LR and Rt MR, B. Rt so and Lt Io, C. Rt LR and Lt MR, D. All the above', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Right lateral rectus and left medial rectus.\nYolk muscles are pair of muscles one from eye which contracts simultaneously during version movement.', 'role': 'assistant'}]