Conjoint collateral vascular bundles and eustele are present in ..........

Two cross-sections of stem and root appear simple,when viewed by the naked eye. But under a microscope,they can be differentiated by:

The transverse section of a plant shows the following anatomical features:
$(a)$ Large number of scattered vascular bundles surrounded by bundle sheath.
$(b)$ Large conspicuous parenchymatous ground tissue.
$(c)$ Vascular bundles conjoint and closed.
$(d)$ Phloem parenchyma absent.
Identify the category of plant and its part.

Select the correct option regarding the following statements.

Vascular bundles in dicot stem are

Generally,the hypodermis in monocots is composed of: