Whooping cough is also called pertussis. It is a contagious bacterial disease that is caused by bacteria.e.Bordetella pertussis. Diphtheria is caused by bacteria i.e. Corynebacterium diphtheriae and that is also contagious. This bacteria usually affects the throat and nose mucous membrane. Leprosy is caused by bacteria i.e. Mycobacterium leprae and it is also a communicable disease. There is a substance derived from microorganisms that destroy the growth of microorganisms. So the correct answer is D. In others options viral disease is present like AIDS and Polio.