List of endangered species was released by :

Options

A. IUCN
B. BBC
C. WCC
D. UN

Answer

**Step-by-Step Solution:**

1. **Identify the Question**: The question asks which organization released the list of endangered species.

2. **Review the Options**: The options provided are:
- A) IUCN
- B) BBC
- C) WCC
- D) United Nations

3. **Analyze Each Option**:
- **Option A: IUCN (International Union for Conservation of Nature)**: This organization is known for its work in conservation and biodiversity. It is responsible for assessing the conservation status of species and releasing the Red List of Threatened Species, which includes endangered species.
- **Option B: BBC (British Broadcasting Corporation)**: This is a media organization and does not deal with conservation or endangered species.
- **Option C: WCC (World Climate Conference)**: This organization focuses on climate issues, not specifically on endangered species.
- **Option D: United Nations**: While the UN deals with various global issues, it does not specifically release lists of endangered species.

4. **Determine the Correct Answer**: Based on the analysis, the only organization that releases the list of endangered species is the IUCN.

5. **Conclusion**: The correct answer is **A) IUCN**. This organization also publishes the Red Data Book, which contains information on the conservation status of various species.

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