Answer and explanation:
Hello, I noticed that you haven't provided many terms nor descriptions in your question, so I'll describe the glial cell type you mentioned (ependymal cells) and select the proper term for the description you did provide (A).
Ependymal cells - this type of glial cell is located in the ventricles of the brain and the central canal of the spinal cord, forming a special epithelial lining for this cavities, and also participating in the transport and exchange of some substances between the cerebrospinal fluid (CSF) and the parenchyma of the brain.
(A) Form supportive capsules around nerve cells located in ganglia - SATELLITE CELLS. Satellite glial cells are cells that are part of the peripheral nervous system, where they wrap around the neurons' bodies to support and assist them. They are specifically located in the sensory, sympathetic and, parasympathetic ganglia.