How many of the following features are relevant to monocot stem.

a) The monocot stem has a sclerenchymatous hypodermis.

b) a large number of scattered vascular bundles, each surrounded by a sclerenchymatous bundle sheath.

c) scattered vascular bundles, water-containing cavities are present within the vascular bundles.

d) Conjoint and closed vascular bundles. Peripheral vascular bundles are generally smaller than the centrally located ones.