(A]: Kangaroo rat can live without drinking water.
[R]: This is an adaptation to water scarcity in arid conditions

Options

A. If both A and R are true and R is the correct explanation of A
B. If both A and R are true but R is not the correct explanation of A
C. If A is true and R is false
D. If both A and R are false

Answer

**Step-by-Step Solution:**

1. **Understanding the Assertion and Reason:**
- The assertion states that "Kangaroo rat can live without drinking water."
- The reason states that "This is an adaptation to water scarcity in arid conditions."

2. **Analyzing the Assertion:**
- Kangaroo rats are small rodents that are native to arid regions, particularly in North America. They have adapted to survive in environments where water is scarce.
- They can live without drinking water because they have developed specific adaptations that allow them to conserve water effectively.

3. **Analyzing the Reason:**
- The reason provided explains that the ability of kangaroo rats to live without drinking water is an adaptation to the water scarcity they encounter in their natural habitat.
- This is true because their survival strategies, such as lowering their metabolic rate and obtaining water through the metabolic oxidation of seeds, are directly related to the need to adapt to arid conditions.

4. **Conclusion:**
- Both the assertion and the reason are true.
- The reason correctly explains why the assertion is true, as the adaptations of kangaroo rats are specifically designed to cope with water scarcity.

5. **Final Answer:**
- Therefore, the correct option is: **Both assertion and reason are true, and the reason is the correct explanation of the assertion.**

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