Answer:
D) declines as synaptic pruning and death of surrounding neurons proceed.
Explanation:
Gray matter -
It is one of the main component of the central nervous system , which is composed of capillaries , synapses , glial cells , neuropil and neuronal cell bodies .
The grey matter have many cell bodies and fewer myelinated axons , in comparison to the white matter .
The color of grey matter is light grey with hints of yellow and pink which are due to the blood capillaries and the neuronal cell bodies .
The correct option regarding grey matter is ( d ) .
