The answer is (c) Asthma.
Explanation: Asthma is a respiratory disease triggered by allergens, not contaminated water.
Why other options are incorrect:
Cholera:
This is a bacterial infection spread through contaminated water, causing severe diarrhea and dehydration.
Typhoid:
This is a bacterial infection that also spreads through contaminated water, causing fever, headaches, and stomach pain.
Dysentery:
This is a group of diarrheal diseases, often caused by bacteria or parasites transmitted through contaminated water.