A vegetarian is someone who doesn't eat meat, and mostly eats foods that come from plants, like grains, fruits, vegetables, and nuts. Some stricter vegetarians avoid more than just meat. They also avoid animal products, which are nonmeat foods that come from animals. Some examples would be milk (from cows) and eggs (from chickens).

Explanation:

Vegetarians are people who do not consume meat or any products that come from animals, such as dairy and eggs. Therefore, the correct answer is option C, "don't eat."

Heading: Definition of Vegetarians
- Vegetarians are individuals who do not consume meat or any products that come from animals.

Heading: What do Vegetarians Avoid?
- Vegetarians do not eat meat, including beef, pork, chicken, fish, and other animal products.
- They also avoid products that contain animal-derived ingredients, such as gelatin, rennet, and certain food additives.

Heading: Why do Vegetarians Avoid Meat?
- Some vegetarians avoid meat for ethical reasons, as they believe it is wrong to kill animals for food.
- Others avoid meat for health reasons, as vegetarian diets are often associated with several health benefits, such as lower risk of heart disease, cancer, and type 2 diabetes.
- Some vegetarians also avoid meat for environmental reasons, as the meat industry is a major contributor to greenhouse gas emissions and deforestation.

Heading: Types of Vegetarians
- Lacto-ovo vegetarians: They do not eat meat but consume dairy and eggs.
- Lacto-vegetarians: They do not eat meat or eggs but consume dairy products.
- Ovo-vegetarians: They do not eat meat or dairy but consume eggs.
- Vegan: They do not consume any animal products, including meat, dairy, eggs, and honey.

Heading: Conclusion
- Vegetarians do not eat meat or any products that come from animals.
- There are several reasons why people choose to follow a vegetarian diet, such as ethical, health, and environmental reasons.
- There are different types of vegetarians, depending on the products they consume or avoid.