This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Genetics And Genetic Disorders, Subject name: Pediatrics
[{'content': 'What is the risk of an affected individual transmitting an autosomal dominant disease to his/her offspring? \nSelect and explain. \nA. 50%, B. 100%, C. 25%, D. 60%', 'role': 'user'}, {'content': "Answer: A \nExplanation: a. 50%(Ref: Nelson's 20/e p 593, Ghai 8/e p 641)", 'role': 'assistant'}]