This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Medicine
[{'content': 'An abnormal Ham test is most likely associated with which of the following ? \nSelect and explain. \nA. Defect in spectrin, B. Defective GPI anchor, C. Defect in complement, D. Mannose-binding residue defect', 'role': 'user'}, {'content': 'Answer: B \nExplanation: .', 'role': 'assistant'}]