In which of the following is the pith small and inconspicuous?

$(i)$ Unicellular hair
$(ii)$ Endodermis with passage cells
$(iii)$ Pith$-$small$/$inconspicuous
$(iv)$ Radial vascular bundle
$(v)$ Xylem exarch
$(vi)$ $2-4$ xylem and phloem
The above description refers to which of the following?

Define the following terms:
$(i)$ Endarch xylem
$(ii)$ Exarch xylem

In .......,there are fewer than six radial vascular bundles.

Polyarch condition is found in which of the following?

In angiosperms,lateral roots arise from