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: Medicine
[{'content': 'True statement about esophageal varices is: \nSelect and explain. \nA. 90 % of cirrhotic patients have varices at the time of diagnosis, B. Bleeding cirrhotic varices moality is 90%, C. Variceal hemorrhage is the most common fatal complication of cirrhosis, D. Varices is not possible in the absence of cirrhosis', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Epidemiology of esophageal varices and correlation with liver disease At the time of diagnosis, 30% of cirrhotic patients have esophageal varices, and 90% after approximately 10 years. Bleeding from esophageal varices is associated with a moality rate of 20% at 6 weeks, Variceal bleeding is the most common fatal complication of cirrhosis. Some patients develop varices and hemorrhage early in the course of the disease, even in the absence of cirrhosis. Ref: WGO Practice Guidelines Esophageal varices', 'role': 'assistant'}]