**Core Concept**
Dracunculiasis, also known as Guinea worm disease, is a parasitic infection caused by the nematode Dracunculus medinensis. The infection is transmitted through contaminated water containing copepods (water fleas) that harbor the parasite.

**Why the Correct Answer is Right**
Prevention of dracunculiasis primarily involves avoiding drinking water from contaminated sources. This is achieved through proper water treatment, such as boiling, filtering, or chlorination, as well as using safe water storage containers. Another important measure is educating people on the risks associated with drinking untreated water from open sources, such as ponds or lakes.

**Why Each Wrong Option is Incorrect**
**Option A:** Proper water treatment methods, such as boiling and chlorination, are effective in preventing dracunculiasis, making this option incorrect.
**Option B:** Using safe water storage containers is also an effective method of preventing dracunculiasis transmission, so this option is incorrect.
**Option C:** Educating people on the risks associated with drinking untreated water from open sources is crucial in preventing dracunculiasis, making this option incorrect.

**Clinical Pearl / High-Yield Fact**
Dracunculiasis is a disease of poverty, primarily affecting communities without access to clean water and proper sanitation. It is a significant public health concern in areas where water sources are contaminated with copepods that harbor the parasite.

**Correct Answer:** C.