(A) : Accessory organs of the flowers are sterile parts.
(R) : They develop as modified leaves for protecting the essential organs.

Options

A. Cladodes
B. Phyllodes
C. Phylloclades
D. Scales

Answer

To analyze the given statements regarding the accessory organs of flowers and their characteristics, we can break down the solution into the following steps:

### Step 1: Understand the Assertion
The assertion states that "accessory organs of the flowers are sterile parts."
- **Explanation**: Accessory organs, which include parts like sepals and petals, do not participate in the reproductive process of the flower. They are termed "sterile" because they do not produce gametes or contribute directly to reproduction.

### Step 2: Understand the Reason
The reason states that "they develop as modified leaves for protecting the essential organs."
- **Explanation**: Accessory organs are indeed modified leaves. They serve to protect the essential reproductive parts of the flower (the androsium and gynosium) and may also attract pollinators.

### Step 3: Evaluate the Truth of Each Statement
- **Assertion**: The assertion is true because accessory organs are indeed sterile parts of the flower.
- **Reason**: The reason is also true as accessory organs develop from modified leaves and serve protective functions.

### Step 4: Determine the Relationship Between Assertion and Reason
- While both the assertion and reason are true, the reason does not adequately explain why accessory organs are classified as sterile parts. The reason focuses on their protective role rather than their lack of reproductive function.

### Conclusion
Both the assertion and the reason are true, but the reason is not the correct explanation for the assertion.

### Final Answer
- **Assertion (A)**: True
- **Reason (R)**: True
- **Explanation**: The reason is not the correct explanation for the assertion.

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