In situ conservation is carried out through:

Options

A. National parks
B. Wild life sanctuaries
C. Biosphere reserves
D. All the above

Answer

To solve the question "In situ conservation is carried out through:", we need to understand the concept of in situ conservation and identify the correct examples from the options provided.

### Step-by-Step Solution:

1. **Understanding In Situ Conservation**:
- In situ conservation refers to the conservation of species in their natural habitats. This means protecting the ecosystems and natural environments where these species live.

2. **Identifying Examples of In Situ Conservation**:
- Common examples of in situ conservation include:
- **National Parks**: Protected areas established to conserve wildlife and natural resources.
- **Wildlife Sanctuaries**: Areas set aside for the protection of animals and their habitats.
- **Biosphere Reserves**: Areas designated to promote sustainable development while conserving biodiversity.

3. **Analyzing the Options**:
- The question provides four options:
- National Park
- Wildlife Sanctuaries
- Biosphere Reserves
- All of the above
- Since all three options (National Parks, Wildlife Sanctuaries, and Biosphere Reserves) are recognized as forms of in situ conservation, we can conclude that the correct answer is "All of the above".

4. **Final Answer**:
- Therefore, the correct answer to the question is: **All of the above**.