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': 'Which of the following is cause of RBBB \nSelect and explain. \nA. It can occur in a normal person, B. Pulmonary embolism, C. Corpulmonale, D. All of the above', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., All of the above Causes of RBBB Normal physiological Pulmonary embolism/corpulmonale Pulmonary aery hypeension ASD Rheumatic hea disease", 'role': 'assistant'}]