Vascular bundles are scattered in:

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

Vascular bundles surrounded by a sclerenchymatous bundle sheath is a feature of

Innumerable vascular bundles,lack of cambium and lack of a well demarcated pith is found in:

Assertion : In collateral vascular bundles,phloem is situated towards the inner side.
Reason : In monocot stem,cambium is present.

$A$ 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: