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': "Defect of glanzmann's thrombosthenia is ? \nSelect and explain. \nA. Gp1Ib-IlIa, B. GpIIIa-I lb, C. GpIla-Illb, D. Gpfilb-I la", 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., GpI1b-IlIa", 'role': 'assistant'}]