[A]: In Nepenthes, lamina is modified to capture insects to get nitrogenous food.
[R]: The plant proteins are broken down to amino acids and then absorbed by plant.

Options

A. (a) If both A and R are true and R is the correct explanation of A
B. (b) If both A and R are true but R is not the correct explanation of A
C. (c) If A is true and R is false
D. (d) If both A and R are false

Answer

To solve the assertion-reason question, we need to analyze both the assertion and the reason provided.

### Step-by-Step Solution:

1. **Understanding the Assertion**:
- The assertion states that in Nepenthes, the lamina is modified to capture insects to obtain nitrogenous food.
- Nepenthes, commonly known as pitcher plants, have evolved specialized structures (pitchers) that trap insects. This adaptation helps them acquire essential nutrients, particularly nitrogen, which is often limited in their natural habitat.

2. **Evaluating the Truth of the Assertion**:
- The assertion is true. Pitcher plants are indeed known for their ability to trap and digest insects to supplement their nutrient intake, especially nitrogen and phosphorus.

3. **Understanding the Reason**:
- The reason states that plant proteins are broken down into amino acids and then absorbed by the plant.
- This process is part of how plants utilize the nutrients they obtain from their environment, including those derived from the digestion of insects.

4. **Evaluating the Truth of the Reason**:
- The reason is also true. After the insects are digested, the proteins within them are broken down into amino acids, which the plant can then absorb and use for growth and development.

5. **Analyzing the Relationship**:
- The reason explains the assertion. The assertion describes how Nepenthes captures insects for nitrogen, and the reason elaborates on how the plant processes these nutrients for its benefit.

6. **Conclusion**:
- Both the assertion and reason are true, and the reason provides a correct explanation for the assertion. Therefore, the correct answer is that both the assertion and reason are true, and the reason is the correct explanation of the assertion.

### Final Answer:
Both assertion and reason are true, and the reason is the correct explanation of the assertion.