Assertion: "Touch" responses in Mimosa is an example of such movement.
Reason : Nastic movements occur in the direction of stimulus.

Options

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

Answer

D

Explanation

The leaves of mimosa have the capability to display Thigmonasty (touch-induced movement). In the sensitive plant, the leaves respond to be being touched, shaken, heated or cooled. The speed of the response depends on the magnitude of the stimulus.