Grass leaves curl inwards during very dry weather. Select the most appropriate reason from the following:

Options

A. Tyloses in vessels
B. Closure of stomata
C. Flaccidity of bulliform cells
D. Shrinkage of air spaces in spongy mesophyll

Answer

C

Explanation

Bulliform cells become flaccid due to water loss. This will make the leaves to curl inward to minimise water loss.