Cholera and Typhoid area.Vector borne diseasesb.Water borne diseasesc.Air borne diseasesd.None of the abov

To categorize diseases based on their transmission routes, let's analyze the given options:

1. Cholera is primarily a waterborne disease. It is caused by the bacterium Vibrio cholerae which is typically transmitted through contaminated water or food.

2. Typhoid is also classified as a waterborne disease. Caused by the bacterium Salmonella typhi, it spreads through ingestion of contaminated food or water.

Given that both cholera and typhoid are transmitted via contaminated water, the appropriate classification for both diseases from the options provided would be:

Final Answer: b. Water borne diseases.