World Conservation Union maintains

Options

A. Red Data Book
B. Red List
C. Pink List
D. Both A and B.

Answer

**Step-by-Step Solution:**

1. **Understanding the World Conservation Union (WCU)**: The WCU, also known as the International Union for Conservation of Nature (IUCN), is an organization that focuses on the conservation of nature and sustainable use of natural resources.

2. **Identifying the Purpose of the WCU**: The primary function of the WCU is to assess the conservation status of species and to provide information on the state of biodiversity globally. This includes identifying species that are threatened or endangered.

3. **Exploring the Options**:
- **Red Data Book**: This is a document that contains information about species that are at risk of extinction. It serves as a comprehensive resource for conservationists to understand which species require immediate attention.
- **Red List**: Similar to the Red Data Book, the Red List is a critical tool that provides a global assessment of the conservation status of different species. It categorizes species based on their risk of extinction.
- **Pink List**: This term is less commonly used but generally refers to a list of critically endangered species.

4. **Conclusion**: The WCU maintains both the Red Data Book and the Red List as part of its efforts to monitor and conserve biodiversity. Therefore, the correct answer to the question is that the World Conservation Union maintains both the Red Data Book and the Red List.

**Final Answer**: The World Conservation Union maintains the Red Data Book and the Red List.

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