Site for all activities and also the cell organelles are embedded in:

Options

A. nucleolus
B. nucleoplasm
C. protoplasm
D. mitochondria

Explanation

To answer the question "Site for all activities and also the cell organelles are embedded in," we will analyze the given options step by step.

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks for the site where all cellular activities occur and where cell organelles are embedded.

2. **Evaluating the First Option - Nucleolus**:
- The nucleolus is located within the nucleus and is primarily responsible for the production and assembly of ribosomes.
- **Conclusion**: This option is incorrect because the nucleolus does not serve as the site for all cellular activities.

3. **Evaluating the Second Option - Nucleoplasm**:
- Nucleoplasm is the gel-like substance within the nucleus that surrounds the nucleolus and chromosomes.
- **Conclusion**: This option is also incorrect because, while it is a component of the nucleus, it does not encompass all cellular activities.

4. **Evaluating the Third Option - Protoplasm**:
- Protoplasm refers to the living content of a cell, including the cytoplasm and the nucleus. It is the site where all cellular activities occur and where organelles are embedded.
- **Conclusion**: This option is correct as it encompasses both the cytoplasm (where most activities occur) and the organelles.

5. **Evaluating the Fourth Option - Mitochondria**:
- Mitochondria are known as the powerhouse of the cell, primarily involved in energy production.
- **Conclusion**: This option is incorrect because mitochondria are specific organelles, not the site for all activities.

### Final Answer:
The correct answer is **Protoplasm**.

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