Choose the correct match of glial cell type and function.
A) astrocytes-metabolize neurotransmitters and modulate synaptic effectiveness B) oligodendrocytes-produce the myelin sheaths of myelinated neurons in the peripheral nervous system C) microglia-produce the myelin sheaths of myelinated neurons in the central nervous system D) radial glia-the source of immunoprotection against pathogens. E) Schwann cells-provide nutritional support to non-myelinated neurons