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: Medicine
[{'content': 'Most common aerial thrombosis related manifestations in antiphospholipid antibody syndrome is: \nSelect and explain. \nA. Stroke, B. Transient ischemic attacks, C. Myocardial ischemia, D. Amaurosis fugax', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Aerial thrombosis and related consequences in APLA syndrome: Stroke-20%, TIA-11 %, Myocardial ischemia-10% Amaurosis fugax-7% Ref: Harrisons principles of internal medicine, 18th edition, Page 2737', 'role': 'assistant'}]