Assertion (A): Crocodile has a four chambered heart.
Reason (R): Crocodile is a reptile.

Options

A. Both A and R are true and R is the correct explanation for A.
B. Both A and R are true but R is not the correct explanation for A.
C. A is true and R is false.
D. A is false and R is true.

Explanation

**Step-by-Step Solution:**

1. **Understanding the Assertion (A):**
- The assertion states that "Crocodile has a four-chambered heart."
- This is true. Crocodiles are unique among reptiles as they possess a four-chambered heart, which consists of two atria (oracles) and two ventricles. This structure allows for the separation of oxygenated and deoxygenated blood.

2. **Understanding the Reason (R):**
- The reason states that "Crocodile is a reptile."
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