Plant Number of Stomata Number of Epidermal cells A 40 730 B 60 510 C 70 450 D 30 620 Identify the two plants having least stomatal index \[\begin {array} {1 1} (1)\;B\: C & \quad (2)\;A\: D \\ (3)\;A\: C & \quad (4)\;A\: B \end {array}\]