This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: miscellaneous, Subject name: Pathology
[{'content': 'Thrombomodulin-thrombin complex produces its anticoagulant effect by- \nSelect and explain. \nA. Inactivating factor V and VIII, B. Inactivating protein C, C. Inactivating protein S, D. Inactivating factor VIII', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Thrombomodulin Present on the endothelial cells and binds to thrombin and activates protein C, which inhibits clotting by proteolysis of factor Va and VIIIa. Ref: RAM DAS NAYAK 2nd Ed. Pg 89', 'role': 'assistant'}]