Protoxylem is the first-formed xylem. If the protoxylem lies next to the phloem,what kind of arrangement of xylem would you call it?

How many xylem bundles are found in the internal structure of a sunflower root?

Radial vascular bundles are found in .........

$A$: According to Clowes,there are three histogens in monocot root.
$R$: In dicot roots,innermost groups of initials form root cap.

In the diagram of $T.S.$ of the stele of a dicot root,the different parts have been indicated by alphabets; choose the answer in which these alphabets correctly match with the parts they indicate.

Give differences: Dicot root and Monocot root.