A leaf showing stomata and cuticle on upper epidermis, raphides in the mesophyll and diaphragm cells, belongs to a plant that probably is a
Mesophyte
Floating hydrophyte
Submerged hydrophyte
Succulent xerophyte
A leaf showing stomata and cuticle on the upper epidermis, raphides in the mesophyll and diaphragm cells, and belonging to a floating hydrophyte, could indicate that the plant belongs to the family Araceae, specifically the genus Pistia.
Pistia is commonly known as water lettuce and is a floating aquatic plant. It has leaves with stomata and a cuticle on the upper epidermis to facilitate gas exchange while minimizing water loss. The presence of raphides in the mesophyll and diaphragm cells is consistent with the characteristics of the Araceae family, including the genus Pistia. Hence, the correct answer is option 2.