Answer:
E. Nervous
Step-by-step explanation:
Neuroglia are also known as glia and are typically a non-neuronal cells found mainly within the central nervous system (CNS) e.g spinal cord and brain. Also, neuroglia are found within peripheral nervous system (PNS) that do not have the ability to produce any electrical impulse such as satellite and schwann cells.
Some of the notable functions of the neuroglia cells are surrounding neurons, insulating a neuron from another, providing nutrients and oxygen to the neurons, removing dead neurons and destroying pathogens.
Hence, a decaying neuroglia would most directly affect the nervous tissue cells such as the PNS and CNS.