This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Concepts of Immunity, Classification of Vaccines, Subject name: Social & Preventive Medicine
HPV vaccine is: 
Select and explain. 
A. Monovalent, B. Bivalent, C. Quardrivalent, D. Bivalent & quadrivalent
D: Bivalent & quadrivalent
Answer: D: Bivalent & quadrivalent 
Explanation: Currently two Human Papilloma Virus (HPV) vaccines are available in India as a protection against cervical cancer Gardasil vaccine: HPV types 6, 11, 16, 18 (Quadrivalent) Cervarix vaccine: HPV types 16, 18 (Bivalent)