Answer: B) Bound to the cell membrane of neurons
Step-by-step explanation:
The cellular prion protein (PrPC) is a cell surface protein expressed in a variety of different organs and tissues with high expression levels in the central and peripheral nervous systems.
PrPC attaches to the outer surface of the cell membrane by a glycosylphosphatidylinositol anchor but researchers have proposed roles in cell signalling and formation of synapses.