The vascular cambium normally gives rise to:

The correct option is C Secondary xylem
Secondary growth is the increase in the girth of the plant.

During secondary growth, the interfascicular cambium and the intrafascicular cambium joins together to form a complete ring of the vascular cambium.

The vascular cambium, so formed, produces secondary phloem towards the outer side and secondary xylem towards the inner side.


Cork cambium (phellogen) forms cork or phellem towards the outer side and secondary cortex or phelloderm towards the inner side.

The periderm is a collective term used for cork, cork cambium and secondary cortex.