Our body produces to provide immunity against the poisonous substance present in the microorganisms.

Options

A. toxins
B. pathogens
C. antibodies
D. antigens

Answer

**Step-by-Step Solution:**

1. **Understanding Immunity**: The human body has a defense mechanism known as the immune system, which protects against harmful substances, including those produced by microorganisms.

2. **Role of Antibodies**: Antibodies are specialized proteins produced by the immune system in response to antigens, which are foreign substances like toxins or pathogens (bacteria, viruses).

3. **Production of Antibodies**: When the body detects a harmful microorganism or its toxins, it activates B cells (a type of white blood cell) to produce antibodies specific to that microorganism or toxin.

4. **Function of Antibodies**: These antibodies bind to the toxins or pathogens, neutralizing them and marking them for destruction by other immune cells. This process helps to eliminate the threat and provides immunity against future infections by the same microorganism.

5. **Conclusion**: Therefore, the correct answer to the question is that our body produces **antibodies** to provide immunity against the poisonous substances present in microorganisms.

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