The correct options are
A Malaria
B Dengue
D Sleeping sickness
Vector-borne diseases are those in which the causative organism is usually a microbe or a protozoan, but it is introduced from infected person to healthy person by an agent like mosquito. Few examples of vector-borne diseases are malaria (pathogen: Plasmodium, protozoan), Elephantiasis (pathogen: filarial worm), Sleeping sickness (pathogen: Trypanosoma, Protozoan), Dengue (pathogen: Dengue virus), etc.