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': 'Which of the following are signs of antemortem drowning \nSelect and explain. \nA. Cadaveric spasm, B. Emphysema aquosum, C. Mud particles in airway, D. All of the above', 'role': 'user'}, {'content': 'Answer: D \nExplanation: All of the above are features of antemortem drowning.', 'role': 'assistant'}]