The correct option is D Malaria
The World Health Organisation (WHO) is the United Nations specialised agency for health. It was established on April 7, 1948 when 26 members of the United Nations ratified its constitution. April 7 is celebrated as the World Health Day every year.
It gives important drugs needed for medical care, The WHO launched a programme to immunise children against six major diseases-Measles, Diptheria, Tetanus, Tuberculosis, Polio and Whooping Cough.