This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Abnormal labor, Subject name: Gynaecology & Obstetrics
[{'content': "Earliest sign of intrauterine death is \nSelect and explain. \nA. Gas in blood vessels, B. Hyperflexion of fetal spine, C. Spalding's sign, D. Aboion", 'role': 'user'}, {'content': "Answer: A \nExplanation: Intrauterine death : Presence of gas in the fetal large vessels - Robes sign is the earliest sign seen 12 hrs after fetal death Ball sign - Crumpled up spine of the fetus or hyperflexion of the spine Spalding's sign -Overlapping of the fetal skull bones due to shrinkage of cerebrum after death of fetus. Ref:Dutta Obs 9e pg 303.", 'role': 'assistant'}]