Question

Which disease is a highly contagious viral infection, but has been eradicated worldwide as a result of global vaccination?
A. chickenpox
B. influenza
C. smallpox
D. tuberculosis

Answer 1

I believe it is c. smallpox

Answer 2

C. small pox   is the answer.
Chicken pox still occurs in many areas.  The flu strains change so there is no one effective vaccine.  There is no vaccine for Tuberculosis.