Which among the following is incorrect about epidermal tissue system?

Stomata are surrounded by a pair of kidney-shaped cells called guard cells and the inner walls of stomata are comparatively thinner than that of outer walls

Cuticle provides water proof nature for leaves and stems and stomata regulates exchange of air and water

Single continuous layer of compactly arranged parenchymatous cells that provides complete protection are present in epidermis

Epidermal tissue system provides protection and stops too much loss of water and comprises of epidermis, stomata and epidermal appendages