Answer:
Option B
Step-by-step explanation:
Small pox disease was discovered Edward Jenner in 1796. The disease causing agent of Tuberculosis i.e bacteria Mycobacterium tuberculosis was however discovered in March 1882 by Dr. Robert Koch
The first interaction of HPAI A(H5N1) virus with human was reported in year 1997 in Hong kong.
And first case of polio was reproted in Vermont in U.S. in 1894
hence, among all the bird flu is the most recent disease
Option B is correct