Assertion :Subaerial stem modifications participate in vegetative reproduction. Reason: They store water and food.

Assertion and reason are true, reason is correct explanation of assertion.

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Assertion and reason are true,reason is not the correct explanation of assertion.

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Assertion is true reason is false.

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Assertion is false reason is true.

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Solution

The correct option is C Assertion is true reason is false.
The sub-aerial stems are modified for vegetative reproduction as the stem is partly above ground and partly underground. Hence, the nodes near the ground develop short aerial branches and adventitious roots. Assertion is correct. The underground stem modification (rhizome, bulb, corn etc) are meant for food storage; not the subaerial ones (runner, suckers, stolen). Reason is false.
Therefore, the correct answer is option C.

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