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': 'Predisposing factor for aerial thrombosis: \nSelect and explain. \nA. AT III deficiency, B. Protein S deficiency, C. Protein C deficiency, D. Homocystenemia', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Answer is D (Homocystenemia) Homoeystenemia is associated with increased risk of aerial thrombosis. Deficiency of AT III, Protein C and Protein S predisposes to venous thrombosis and not aerial thrombosis. Abnormality Aerial Venous Factor V Leiden mutation -- + Prothrombin -- + Antithrombin III -- + Protein C -- + Protein S -- + Homorysteinemia + + Antiphospholipid syndrome + +', 'role': 'assistant'}]