# The number of stomata and epidermal cell in $1 mm^2$ area of abaxial surface of the leaves of A, B , C and D plants are given below. Identify the plant having the least stomatal index :

 Plant Number of stomata Number of epidermal cells A 20 100 B 40 160 C 50 300 D 70 560

$\begin {array} {1 1} (1)\;B & \quad (2)\;C \\ (3)\;D & \quad (4)\;A \end {array}$

(3) D