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: Pharmacology
[{'content': 'Apixaban is a new drug that acts by : \nSelect and explain. \nA. Inhibiting TNF alpha, B. Inhibiting coagulation factor Xa, C. Inhibiting platelet aggregation, D. Activating plasminogen', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Rivaroxaban and Apixaban are newer oral anticoagulants that act by inhibiting factor Xa.\nNewer oral anticoagulants that are currently being asked in the exams are:\n\nDabigatran (Direct thrombin inhibitor)\nRivaroxaban\nApixaban', 'role': 'assistant'}]