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
Approximate time interval between HIV infection and development of AIDS is 
Select and explain. 
A. 7.5 years, B. 10 years, C. 12 years, D. 15 years
B: 10 years
Answer: B: 10 years 
Explanation: HIV 1 (India)- 10 years HIV 2 (Africa)- 15 years