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: Unknown
The defect in Glanzmann's thrombasthenia is - 
Select and explain. 
A. Gp IIb-IIIa, B. Gp IIa-IIb, C. Gp IIa-IIIb, D. Gp IIIb-IIa
A: Gp IIb-IIIa
Answer: A: Gp IIb-IIIa 
Explanation: Ans. is 'a' i.e., Gp IIb-IIIa