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: Pathology
[{'content': 'Paradoxical embolism is seen in \nSelect and explain. \nA. Heart, B. Liver, C. Brain, D. Lung', 'role': 'user'}, {'content': 'Answer: A \nExplanation: PARADOXICAL EMBOLISM - right heart into the left heart (right to left shunt) permit venous emboli to\nbypass the lungs and directly enter the systemic circulation', 'role': 'assistant'}]