Probiotics are

Options

A. cancer inducing microbes
B. new kind of food allergens
C. live microbial food supplement
D. safe antibiotics

Answer

### Step-by-Step Solution:

1. **Definition of Probiotics**: Probiotics are defined as live microorganisms that provide health benefits when consumed in adequate amounts. They are often referred to as "good" or "friendly" bacteria.

2. **Function of Probiotics**: The primary function of probiotics is to maintain a healthy balance of gut bacteria. They help in fighting against harmful bacteria and pathogens that can cause diseases.

3. **Sources of Probiotics**: Probiotics can be found in various food sources, with one of the most common being fermented foods. A notable example is curd (yogurt), which contains beneficial bacteria such as Lactobacillus.

4. **Role in Health**: Probiotics contribute to digestive health, enhance immune function, and may help prevent certain infections by outcompeting harmful bacteria in the gut.

5. **Identifying the Correct Option**: Given the options provided, the correct answer is that probiotics are "living microbe food supplements." This aligns with their definition and function as beneficial bacteria that support health.

6. **Elimination of Incorrect Options**:
- Option A (cancer introducing microbes) is incorrect as probiotics do not introduce cancer-causing microbes.
- Option B (new kind of food allergens) is incorrect as probiotics are not allergens.
- Option D (safe antibiotics) is incorrect as probiotics are not antibiotics; they are beneficial bacteria.

7. **Final Conclusion**: The correct answer is that probiotics are living microbe food supplements that help maintain health by supporting the gut microbiome and fighting harmful bacteria.