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': 'Tylosis is associated with - \nSelect and explain. \nA. Oesophageal Ca, B. Uterine Ca, C. Gastric Ca, D. Prostatic Ca', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]