Helmintic diseases are transmitted through

Options

A. food
B. dirty hands
C. contaminated oil
D. all of above

Answer

### Step-by-Step Solution:

1. **Understanding Helmintic Diseases**: Helmintic diseases, also known as helminthiasis, are infections caused by parasitic worms (helminths) that can infect both humans and animals.

2. **Identifying the Cause**: The primary cause of helminthic diseases is the ingestion of parasites, which are typically found in contaminated environments. These parasites live in the gastrointestinal tract of their hosts.

3. **Transmission Modes**: The transmission of helminthic diseases occurs through contaminated fecal matter. This can happen in several ways:
- **Contaminated Soil**: Worm eggs can be present in soil that has been contaminated with feces.
- **Contaminated Food**: Consuming food that has been washed or grown in contaminated soil can lead to infection.
- **Dirty Hands**: Poor hygiene practices, such as not washing hands after using the restroom, can lead to the ingestion of eggs or larvae.

4. **Conclusion**: Since helminthic diseases can be transmitted through food, dirty hands, and contaminated soil, the correct answer to the question is "all of the above."

### Final Answer: All of the above.

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