Assertion : The chewing and lapping mouth parts consist of a long tounge which is formed from the glossae of the labium .
Reason : The galeae are much elongated ane coiled, each forming a half tube , which makes complete tube when both are locked together .

Options

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

Explanation

To solve the question regarding the assertion and reason about the mouthparts of insects, we will analyze both statements step by step.

### Step 1: Analyze the Assertion
The assertion states: "The chewing and lapping mouth parts consist of a long tongue which is formed from the glossae of the labium."

- The labium is indeed the second pair of maxillae in insects, and it plays a crucial role in forming the mouthparts.
- The glossae are the lobes of the labium that can elongate and retract to form a tongue-like structure.
- Therefore, the assertion is **true** because the long tongue in chewing and lapping mouthparts is formed from the glossae of the labium.

### Step 2: Analyze the Reason
The reason states: "The galeae are much elongated and coiled, each forming a half tube, which makes a complete tube when both are locked together."

- The galeae are part of the maxillae, not the labium. They do contribute to the structure of the mouthparts, but they do not form the tongue.
- The statement about the galeae forming a half tube is misleading as it does not accurately describe their function in relation to the formation of the food channel.
- Therefore, the reason is **false** because it incorrectly describes the role of galeae in forming the food channel.

### Conclusion
Based on the analysis:
- The assertion is true.
- The reason is false.

Thus, the correct answer is that the assertion is true, but the reason is false.

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