This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Impotency, Virginity, pregnancy & aboion, Subject name: Forensic Medicine
[{'content': 'False negative hydrostatic test in live fetus is for \nSelect and explain. \nA. Atelectasis, B. Aicial respiration, C. Emphysema, D. Putrefaction', 'role': 'user'}, {'content': 'Answer: A \nExplanation: False negative hydrostatic test can be seen in :- 1. Diseases e.g. : acute edema, pneumonia, Congenital syphilis. 2. Atelectasis False positive hydrostatic test can be seen in :- 1. Presence of putrified gases. 2. Aificial inflation.', 'role': 'assistant'}]