Assertion: Corolla of Cassia shows imbricate aestivation.

Reason: In the corolla, the posterior odd petal overlaps the two lateral petals known as wings or alae which in return overlap the anterior two fused petals and the overlapping is from posterior to anterior in descending manner.

• A

  Both assertion and reason are correct and reason explains the assertion.

• B

  Both assertion and reason are correct but reason does not explain the assertion.

• C

  Assertion is correct but reason is incorrect

• D

  Both assertion and reason are incorrect