Which of the following diseases is commonly transmitted through droplets? 

The common cold can spread by droplets. Droplets resulting from cough or sneezes of an infected person are either inhaled directly or
transmitted through contaminated objects such as pens, books, cups, doorknobs, computer keyboard or mouse, etc., and cause infection in a
healthy person.

Malaria and filariasis are spread by contaminated food and water.

Amoebiasis is spread by contaminated food and water.