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: Surgery
[{'content': 'Ramesh Singh, a 40 yrs old man, was admitted with fracture shaft femur following a road traffic accident. On 2nd he became disoriented. He was found to be tachypnoeic, and had conjunctival petechiae. Most likely diagnosis is: \nSelect and explain. \nA. Pulomary embolism, B. Sepsis syndrome, C. Fat embolism, D. Hemothorex', 'role': 'user'}, {'content': 'Answer: C \nExplanation: C i.e. Fat embolism', 'role': 'assistant'}]