B. Veins–connect the vascular tissue to the stem
A.- Wrong. The stomata's function is transpiration. They serve as receiving and releasing port for oxygen, and carbon dioxide.
B.- Veins. Incorrect, the veins are the organ in charge of connecting the vascular tissue that gathers and distributes water and food through the vascular net in the leaf.
C.- Incorrect, they capture light to propitiate photosynthesis.
D.- Cuticule's function is to prevent the escape of water on the epidermal plant's surface, as well as preventing the barrier for other molecules.
The reason behind B to be the best option is that the middle leaf vein connects the leaf to the stem.
(See attached file for its functions)
A Leaf has the following structures:
Upper epidermis layer
Spongy mesophyll layer
Lower epidermis layer
a polymer is a chainlike molecule made up of small molecular units. these small molecular units are called monomers. monomers of polymer can be joined together either naturally or synthetically.
d is the answer
sorry if its wrong!