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: Pediatrics
[{'content': 'Hemophilic A have following diagnostic features except- \nSelect and explain. \nA. | VIII factor, B. | PTT, C. | PT, D. Normal BT', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., | PT", 'role': 'assistant'}]