The correct option is B 1-d, 2-a, 3-b, 4-c
Dysentery is an infection of intestinal tract caused due to pathogen like Shigella. Cholera is an infection of small intestine caused by a bacteria called Vibrio cholerae. Swine Flu is a respiratory disease caused by influenza virus (H1N1). Typhoid is a bacterial infection caused by Salmonella typhi.