Malaria was first identified in

Answer: Option B

Malaria was first identified in Hyderabad.
Sir Ronald Ross Institute of Parasitology is a malaria research institute located in Begumpet, Secunderabad, Hyderabad, India. Established in 1955, the institute is a division of Osmania University.
Sir Ronald Ross was posted as a general duty medical officer to the regiment stationed in Secunderabad in 1893. His study confirmed that mosquitoes were the carriers of malaria parasites. For his work in demonstrating the life cycle of the parasites of malaria in mosquitoes, and thus establishing the hypothesis of Laveran and Manson, Ross was awarded the Nobel Prize in 1902.