Answer:
The correct answer is option A- oligodendrocytes.
Explanation:
The insulation property of the neurons (axons) of the nervous system is provided by the fat-containing cells which wrap around the axons.
This wrapped structure is known as the "myelin sheath" in which fat provides the insulation to the neurons which increases the impulse conduction through neurons. The "oligodendrocytes" present in the CNS forms the myelin sheath which provides insulation to the neurons.
Thus, option A- oligodendrocytes are the correct answer.
