Final answer:
The accessory protein that stabilizes microtubules is the Tau protein. Kinesins and dyneins are motor proteins and centrosomes are microtubule-organizing centers, not stabilizing proteins.
Step-by-step explanation:
The student is asking about accessory proteins that stabilize microtubules. Among the options given, (c) Tau protein is the correct choice as it is known for its role in stabilizing microtubules in neurons. Kinesins and dyneins are motor proteins that transport cargo along microtubules, not stabilizing proteins. While centrosomes serve as microtubule-organizing centers, they are not proteins but organelles that help in the formation of the mitotic spindle.
Microtubules, which are critical components of the cytoskeleton, are composed of α- and β-tubulin proteins. They provide structural support to the cell and are involved in a number of cellular processes such as maintaining cell shape, cell motility, and chromosome movement during cell division.