Endodermis is the innermost layer of the

The cross-section of a plant material showed the following features when viewed under the microscope.
$(A)$ The vascular bundles were radially arranged.
$(B)$ Four xylem strands with exarch condition of protoxylem.
To which organ should it be assigned?

How many histogens are present in the root apex of monocotyledonous plants?

The endodermal cells show Casparian strips made up of . . . . . . .

How does a monocot root differ from a dicot root?

What is the location of Casparian strips,which interrupt the movement of water inside a root?