Parenchymatous structure with intercellular spaces is

What is the vascular bundle called when the xylem and phloem are located on the same radius?

Choose the incorrect statement.

Select the correct option for the following statements:
$(i)$ The vessel element is made up of cells arranged one above the other.
$(ii)$ When xylem and phloem are arranged together on the same radius,it is called a conjoint/radial vascular bundle.

The rind of $Citrus$ fruit possesses:

$A$ student observed grass and $Hibiscus$ plants in his garden during noon. To his surprise,only the leaves of grass were found rolled inwards. The reason could be