Answer:
(b) Sclerenchyma cells are the permanent tissues present in the
plants. They provide hardness and stiffness to the plant and are composed of
dead cells. This tissue is present in stems around vascular bundles in the
veins of leaves and in hard covering of seeds and nuts.
e.g., the husk of coconut is made up of sclerenchymatous
tissues. The cells of Sclerenchyma are long narrow and thickened due to lignin.
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