Cortex and pith are not distinguished in

$A$ student observed the $T.S.$ of a plant organ slide under a microscope. He observed the vascular bundles in the stelar region as conjoint,collateral,and open. Based on these features of the vascular bundle,identify the correct option from below.

Vessels are absent in this angiosperm.

In how many of the following plant organs are open vascular bundles found? Dicot root,Dicot stem,Monocot root,Monocot stem,Dicot leaf,Monocot leaf.

The transverse section of a plant material shows the following anatomical features: $(a)$ the vascular bundles are conjoint,scattered,and surrounded by sclerenchymatous bundle sheaths,$(b)$ phloem parenchyma is absent. What will you identify it as?

Identify the plant parts whose transverse section shows a clear and prominent pith.