In dorsiventral leaves, stomata occurs : 

Fewer on upper surface and more on lower surface.

The correct answer is Option (2) -Fewer on upper surface and more on lower surface.

The vertical section of a dorsiventral leaf through the lamina shows three main parts, namely, epidermis, mesophyll and vascular system. The epidermis which covers both the upper surface (adaxial epidermis) and lower surface (abaxial epidermis) of the leaf has a conspicuous cuticle.

The abaxial epidermis generally bears more stomata than the adaxial epidermis. The latter may even lack stomata.

The tissue between the upper and the lower epidermis is called the mesophyll. Mesophyll, which possesses chloroplasts and carry out photosynthesis, is made up of parenchyma. It has two types of cells – the palisade parenchyma and the spongy parenchyma.

                                          T.S of Dicot leaf