All the following diseases are transmitted by contaminated food or water except _____.

The correct option is C Tuberculosis
Tuberculosis is an air-borne disease. It spreads by the inhalation of droplets expelled by the infected person. These droplets in the air, enter inside the body of a healthy person through nose. Then from nose they are likely to go to the lungs.
Cholera and typhoid are bacterial diseases and are transmitted through contaminated food or water, while hepatitis A is a viral disease which is transmitted through contaminated water.