is an airborne disease which spreads when droplets containing pathogens are expelled into the air.

The correct option is A Tuberculosis
Tuberculosis is an example of an air borne lung disease caused by the bacteria Mycobacterium tuberculosis. It spreads through air by coughing or sneezing. When a sick person coughs or sneezes, numerous tiny droplets containing the pathogen is given out. A healthy person can get tuberculosis by inhaling these droplets. Both typhoid are hepatitis A are water borne diseases. Hepatitis A can also spread via close physical contact.