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: Forensic Medicine
[{'content': 'No color change is seen in subconjunctival hemorrhage due to: WB 09 \nSelect and explain. \nA. Continuous CO2 supply, B. Little amount of blood is present, C. Continuous O2 supply, D. Color change occurs but not visible to naked eye', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. Continuous O2 supply', 'role': 'assistant'}]