Answer: C. Microfilaments
Explanation: Microfilaments, also called actin filaments, are protein filaments in the cytoplasm of eukaryotic cells that form part of the cytoskeleton. They are primarily composed of polymers of actin, but are modified by and interact with numerous other proteins in the cell. Microfilaments, or actin filaments, are the thinnest filaments of the cytoskeleton and are found in the cytoplasm of eukaryotic cells. The polymers of these linear filaments are flexible but still strong, resisting crushing and buckling while providing support to the cell.
Based on the given options, it is the microfilaments, which are the part of cytoskeleton.
A structure, which assists the cells in maintaining their internal organization and shape, and provides the mechanical support, which allows the cells to perform essential activities like movement and division is known as the cytoskeleton. The cytoskeleton is formed of several different components.
All the cytoskeletons comprises the three prime classes of elements, which vary in size and protein composition. The largest type of filament present within the cytoskeleton are the microtubules, which comprises a protein known as tubulin and a size of about 25 nm in diameter. The smallest type with a diameter less than 6 nm are the actin filaments also known as microfilaments, they possess a protein known as actin. The third component, which form a cytoskeleton is the intermediate filament, with a size of about 10 nm in diameter.
Thus, the correct answer is option C, that is, microfilaments.
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