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': 'A subconjunctival hemorrhage occurs in all conditions except – \nSelect and explain. \nA. Passive venous congestion, B. Pertussis, C. Trauma, D. High intraocular tension', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Trauma, pertusis and venous congestion can cause subconjunctival hemorrhage.', 'role': 'assistant'}]