The correct option is
C Diphtheria
Diphtheria is a communicable bacterial infectious disease caused by Corynebacterium diphtheriae, which causes inflammation of the mucous membranes, forming a false membrane in the throat creating problems while swallowing food, during breathing and resulting in slurred speech. The person also experiences symptoms like common cold, greyish thick covering on the tonsils and throat, fever, swollen neck and sore throat.
The bacterial toxin released can damage the nerves. This disease spreads easily from one person to another but can be prevented by administration of vaccines.
Salmonella typhi bacteria causes typhoid fever in human beings. It is spread through contaminated food and water, and from the intestine it enters into the intestinal cells of the human body creating ulcers and damaging the intestinal walls.
Pneumonia is a respiratory disorder. It leads to acute infection and inflammation of alveoli.
Bacillary dysentery is caused by Shigella bacteria.
The bacteria is present in the human gut causes, an intestinal infection resulting in inflammation of the intestines and bloody diarrhea.