This section contains Assertion (A) and Reason (R ) type questions. Each questions has (1), (2), (3), and (4) out of which only one is correct.
Assertion (A) Birds were called glorified reptiles by Huxlex.
Reason (R ) They are originated from reptiles.

Options

A. Both Assertion and Reason are correct, and Reason is the correct explanation of Assertion
B. Both Assertion and Reason are correct, but Reason is not the correct explanation of Assertion
C. Assertion is correct, but Reason is incorrect
D. Assertion is incorrect, but Reason is correct

Answer

**Step-by-Step Solution:**

1. **Understanding the Assertion (A)**: The assertion states that "Birds were called glorified reptiles by Huxley." This is a historical perspective from the renowned biologist Thomas Henry Huxley, who noted the similarities between birds and reptiles.

2. **Understanding the Reason (R)**: The reason states that "They are originated from reptiles." This refers to the evolutionary lineage of birds, which is believed to have descended from theropod dinosaurs, a group of reptiles.

3. **Evaluating the Assertion**: The assertion is correct. Huxley indeed referred to birds as "glorified reptiles" due to their evolutionary relationship and shared characteristics with reptiles.

4. **Evaluating the Reason**: The reason is also correct. Scientific evidence supports the idea that birds evolved from reptiles, particularly from a group of theropod dinosaurs.

5. **Connecting Assertion and Reason**: The reason provides a justification for the assertion. Since birds are derived from reptiles, it makes sense that they would be referred to as "glorified reptiles."

6. **Conclusion**: Both the assertion and reason are correct, and the reason correctly explains the assertion. Therefore, the correct option is that both A and R are true, and R is the correct explanation of A.

**Final Answer**: Both Assertion (A) and Reason (R) are correct, and R is the correct explanation of A.

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