I. The specialised cells present in vicinity of guard cells are known as ___A___.
II. Ground tissue of leaves is called ___B___.
III. Cuticle is absent in ___C___.
IV. ___D___ help in preventing water loss due to transpiration.

A few epidermal cells, in the vicinity of the guard cells become specialised in their shape and size and are known as subsidiary cells.
In leaves, the ground tissue consists of thin-walled chloroplast containing cells and is called mesophyll.
Cuticle is absent in roots.
The trichomes help in preventing water loss due to transpiration.