To solve this problem, we need to identify the category of plant and its part based on the given anatomical features. Let's analyze each feature:$\newline \bullet$(a) Large number of scattered vascular bundles surrounded by bundle sheath:$\newline$ - This is a characteristic feature of monocotyledonous stems. In monocots, vascular bundles are scattered throughout the ground tissue and are surrounded by a bundle sheath.$\newline \bullet$(b) Large conspicuous parenchymatous ground tissue:$\newline$ - Monocot stems typically have a large amount of ground tissue, which is parenchymatous.$\newline \bullet$