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: Pharmacology
Which of the following drug is given orally? 
Select and explain. 
A. Dalteparin, B. Rivaroxaban, C. Lepirudin, D. All of the above
B: Rivaroxaban
Answer: B: Rivaroxaban 
Explanation: Rivaroxaban &, Apixaban both are oral Factor Xa inhibitor, are used for sho-term thromboprophylaxis