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': 'False about latent nystagmus \nSelect and explain. \nA. Fast phase to the fixing eye, B. Increases with monocular occlusion, C. Is often associated with intermittent exotropia, D. Null point in adduction', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]