In which of the following,the cortex,endodermis,pericycle,and pith are not clearly distinguishable?

Cortex and pith are not distinguished in

In which plant are the vascular bundles scattered in the ground tissue,and each vascular bundle is surrounded by a sclerenchymatous bundle sheath?

$A$ transverse section of a plant part shows the following characteristics:
$(a)$ Numerous,scattered vascular bundles,each surrounded by a bundle sheath.
$(b)$ $A$ large,conspicuous parenchymatous ground tissue.
$(c)$ Conjoint and closed vascular bundles.
$(d)$ Absence of phloem parenchyma.
Identify the type of plant and the part:

Well developed pith is found in

Intraxyllary phloem may also be called