Plants with parallel venation are ..........

Assertion $(A)$: Reticulate venation is observed in the leaves of sunflower.
Reason $(R)$: Sunflower is included in the class Dicotyledonae.

The tongue-like outgrowth found in the leaf of grasses is known as:

The shape of guard cells in stomata in sugarcane plant is

In $Ficus$ $(Rubber\,\, plant)$,the young leaves are protected by reddish structures called bud scales. These are:

Divergent multicostate reticulate venation is found in leaves of