This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: viral infection, Subject name: Medicine
Post exposure prophylaxis of HIV is? 
Select and explain. 
A. Raltregavir+ Emtricitabine + tenofovir, B. Zidovudine+ Lamivudine+ Indinavir, C. Zidovudine + lamivudine+ abacavir, D. Raltregavir + Emtricitabine + Maraviroc
A: Raltregavir+ Emtricitabine + tenofovir
Answer: A: Raltregavir+ Emtricitabine + tenofovir 
Explanation: Chance of person / Doctor getting HIV after prick from HIV positive is 0.3% Post Exposure Prophylaxis-Raltegravir + Emtricitabine + Tenofovir PEP not effective after 72 hours