How many tissues/structures are the result of redifferentiation in dicot root?

Intrafascicular cambium; Interfascicular cambium; Primary pith rays; Secondary pith rays; Vascular cambium; Secondary xylem; Secondary phloem; Phellem; Phelloderm; Cork cambium.

 In the following diagrammatic representation showing stages of embryonic development, identify the type of growth phase labelled as $\mathrm{M}$ and $\mathrm{N}$:

Assertion $\left(\mathrm{A}\right):$ The peripheral region of the secondary xylem is lighter in colour and is known as the sapwood (alburnum).

Reason $\left(\mathrm{R}\right):$ It is involved in the conduction of water and minerals from root to leaf.

The correct answer is:

The trees growing in temperature regions show clear demarcation between spring wood and autumn wood. This is because

*Note- The incorrect answer was marked. It has been changed. 

Which of the following are the part of the Periderm?

I. Duramen

II. Phellogen

III. Phellem

IV. Phelloderm

V. Alburnum

The correct answer is