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: Anatomy
[{'content': 'Patent foramen ovate is due to? \nSelect and explain. \nA. Failure of closure of sinoatrial orifice, B. Failure of fusion of septum primum and endocardial cushion, C. Failure of fusion of septum primum and septum intermedium, D. Failure of fusion of septum primum and septum secundum', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., Failure of fusion of septum primum and septum secundumAfter bih, the foramanovale closes by fusion of septum primum with septum secundum.Failure of fusion of these two septa results in patent pramenovale.", 'role': 'assistant'}]