Answer :
Actin, Intermediate filaments, and Microtubules are all cytoskeletal protein filament. Primary filaments are not.
Primary filaments are not cytoskeletal protein filaments. Thus, the correct option is C.
What is Cytoskeletal?
Cytoskeletal may be defined as the complex arrangement of protein filaments in the cytoplasm of many living cells that provide the shape and internal organization of the cell.
Intermediate filaments, Microtubules, and actin are cytoskeletal protein filaments that perform a specific function in the cell.
Cytoskeletal protein filaments provide mechanical support that authorizes cells to implement essential functions like division and movement.
Therefore, primary filaments are not cytoskeletal protein filaments. Thus, the correct option is C.
To learn more about Cytoskeletal protein filaments, refer to the link:
https://brainly.com/question/19861093
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