Assertion:In some flowers like lily, perianth is a term used when calyx and corolla are not distinct.
Reason:Calyx and corolla are the reproductive organs.

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 assertion and reason are false.

Explanation

**Step-by-Step Solution:**

1. **Understanding the Assertion**: The assertion states that in some flowers, such as lilies, the term "perianth" is used when the calyx (sepals) and corolla (petals) are not distinct. This means that in these flowers, the sepals and petals are fused or look similar, which is characteristic of certain flower types.

2. **Identifying the Role of Calyx and Corolla**: The calyx and corolla are parts of the flower but are not reproductive organs. The calyx consists of sepals, and the corolla consists of petals. Their primary function is to protect the reproductive organs and attract pollinators, but they do not participate directly in reproduction.

3. **Evaluating the Reason**: The reason provided states that the calyx and corolla are the reproductive organs. This statement is incorrect because the reproductive organs of a flower are the stamens (male) and the pistil (female), not the calyx and corolla.

4. **Conclusion**: Since the assertion is true (perianth is used when calyx and corolla are not distinct in flowers like lilies), but the reason is false (calyx and corolla are not reproductive organs), the correct answer is that the assertion is true, but the reason is false.

**Final Answer**: The correct option is that the assertion is true, but the reason is false.

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