Sclereids belong to Sclerenchyma.

Explanation:

Sclerenchyma tissue is one of the permanent tissues in plants. It consists of cells that have thickened, lignified, and hardened secondary cell walls. These cells provide mechanical strength, support, and rigidity to the plant body. Sclerenchyma tissue is primarily of two types - fibers and sclereids.

Sclereids are specialized cells of the Sclerenchyma tissue that are usually shorter and irregular in shape. They are commonly found in the seed coats, fruit walls, and leaves of plants. Sclereids are responsible for providing hardness, toughness, and resistance to various mechanical stresses. They also provide protection against herbivores and pathogens.

Collenchyma tissue is another type of permanent tissue in plants, but it differs from Sclerenchyma tissue in that its cells have unevenly thickened primary cell walls. Collenchyma tissue is usually found in the stem, petioles, and leaves of young plants, where it provides flexibility and support.

Fibers are also a type of Sclerenchyma tissue, but they are elongated and pointy cells that provide tensile strength to the plant body. Fibers are commonly found in the stem, bark, and leaves of plants.

Parenchyma tissue is a type of simple permanent tissue in plants that consists of living, thin-walled cells with large central vacuoles. Parenchyma cells are usually found in the cortex, pith, and mesophyll of plants, where they perform various functions such as photosynthesis, storage, and secretion.

Therefore, the correct answer is option 'B' Sclerenchyma.

Sclerids are reduced form of sclerenchyma cells . They are with highly thickened , lignified cells