Consider the following diseases
1. Diphtheria
2. Chickenpox
3. Smallpox
Which of the above diseases has/have been eradicated in India?(2014)
a) 1 and 2 only
b) 3 only
c) 1, 2 and 3
d) None
ANswer: B
Smallpox has been eliminated from India and the world.