Assertion : Tube feet are characteristic organs of Echinodermata.
Reason : Tube feet play an important role in reproduction.

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 assertion and reason, we will break down the information step by step.

### Step 1: Understand the Assertion
The assertion states that "Tube feet are characteristic organs of Echinodermata."
- Echinodermata is a phylum that includes marine animals like starfish, sea urchins, and sea cucumbers.
- Tube feet are indeed a distinctive feature of these organisms, serving various functions.

**Hint:** Identify the key features of Echinodermata and their unique characteristics.

### Step 2: Analyze the Reason
The reason provided is "Tube feet play an important role in reproduction."
- While tube feet are important for locomotion, feeding, and respiration, they are not primarily known for their role in reproduction.
- Fertilization in many echinoderms, such as sea urchins, is typically external, and tube feet do not play a significant role in this process.

**Hint:** Consider the primary functions of tube feet and how they relate to reproduction.

### Step 3: Evaluate the Assertion and Reason Relationship
- The assertion is correct: Tube feet are indeed characteristic organs of Echinodermata.
- The reason is incorrect: Tube feet do not play a significant role in reproduction.

**Hint:** Determine if both statements are true, if one is true and the other false, or if both are false.

### Step 4: Conclusion
Based on the analysis:
- The assertion is true, and the reason is false. Therefore, the correct option is that the assertion is correct, but the reason is incorrect.

**Final Answer:** Assertion is true; Reason is false.