Epidermis covered with cuticle,bearing trichomes and few stomata is the characteristic feature of

The transverse section of a plant material shows the following anatomical features under microscope $:-$
$(a)$ Collenchymatous hypodermis
$(b)$ Sclerenchymatous pericycle located just above phloem bundles in semi-lunar patches.
$(c)$ Vascular bundles are arranged in a ring.
$(d)$ Vascular bundles are conjoint & open.
Plant material should be :

The stele found in monocot stems is known as:

Vascular bundles have a prominent sheath of fibres in

The ringing (girdling) experiment cannot be performed on sugarcane because:

In which of the following are numerous vascular bundles and the absence of cambium observed?