This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Diagnosis in Obstetrics, Subject name: Gynaecology & Obstetrics
[{'content': 'Fetal hydrops is most commonly associated with: \nSelect and explain. \nA. Cardiac anomalies., B. Renal anomalies., C. GI anomalies., D. Skeletal anomalies.', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. A. Cardiac anomaliesCardiac anomaly is the most common anatomical abnormality associated with fetal hydrops. In general hydrops associated with a structurally abnormal heart carries a poor prognosis, as the anomaly is usually severe. Those hydropic fetuses with arrhythmia but with structurally normal heart usually respond to either transplacental or direct fetal therapy. In these cases, the prognosis is good.', 'role': 'assistant'}]