Statements I : Red data bool has a record of all animals .
Statements II : Ex - situ conservation is the best method to protect endangered species .

Options

A. If both statement I and statement II are true and statement II is a correct explanation of statement I
B. If both statement I and statement II are true and statement II is not a correct explanation of statement I
C. If statement I is true but statement II is false
D. If statement I is false but statement II is true

Answer

To solve the question, we need to evaluate the truthfulness of both statements provided.

### Step 1: Analyze Statement I
- **Statement I**: "Red data book has a record of all animals."
- The Red Data Book is a comprehensive document that specifically lists rare and endangered species of animals, plants, and fungi. It does not contain records of all animals, but rather focuses on those that are at risk. Therefore, this statement is **false**.

### Step 2: Analyze Statement II
- **Statement II**: "Ex-situ conservation is the best method to protect endangered species."
- Ex-situ conservation involves the protection of endangered species by removing them from their natural habitat and providing care in controlled environments such as zoos or botanical gardens. While ex-situ conservation is an important method for protecting endangered species, it is often considered complementary to in-situ conservation, which preserves species in their natural habitats. However, many experts agree that ex-situ conservation is a highly effective method for protecting endangered species, especially when their natural habitats are threatened. Thus, this statement is **true**.

### Conclusion
- Statement I is **false**.
- Statement II is **true**.

The correct option is that the first statement is false and the second statement is true.

### Final Answer
The correct option is **4**: Statement I is false, Statement II is true.

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