Assertion : The chromoplasts contain fat soluble carotenoid pigments like carotene and xanthophylls etc.
Reason : These pigments give yellow, orange or red colour to some parts of the plant.

Options

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

Explanation

To analyze the given question, we need to evaluate the Assertion and Reason statements separately and then determine their relationship.

### Step-by-Step Solution:

1. **Understanding the Assertion**:
- The assertion states that "The chromoplasts contain fat-soluble carotenoid pigments like carotene and xanthophylls."
- Chromoplasts are indeed a type of plastid found in plant cells, and they are known to contain carotenoid pigments, which are fat-soluble.

2. **Understanding the Reason**:
- The reason states that "These pigments give yellow, orange, or red color to some parts of the plant."
- This is also true, as carotenoid pigments are responsible for the yellow, orange, and red colors seen in various fruits and flowers.

3. **Evaluating the Truth of Each Statement**:
- Both the assertion and the reason are true statements. Chromoplasts do contain carotenoid pigments, and these pigments do impart color to parts of the plant.

4. **Determining the Relationship**:
- The next step is to determine if the reason is the correct explanation of the assertion.
- While the reason is true, it does not explain why chromoplasts contain carotenoid pigments. The assertion is about the presence of these pigments, while the reason discusses the effect of these pigments (the color they impart). Thus, the reason does not explain the assertion.

5. **Conclusion**:
- Both the assertion and the reason are true, but the reason is not the correct explanation of the assertion.

### Final Answer:
Both assertion and reason are true, but the reason is not the correct explanation of the assertion.

---