Final answer:
An epithelial membrane consists of either simple or stratified epithelial tissue and includes a basement membrane, contrary to the idea that it doesn't contain mucus-forming cells.
Step-by-step explanation:
An epithelial membrane is a structure that separates and supports body tissues. It is composed of a layer of epithelial tissue that can be simple or stratified, depending on its location and function in the body. This epithelium is attached to a layer of connective tissue. The correct answer to the question posed by the student is C) contains simple or stratified epithelia and a basement membrane. A key feature of epithelial membranes is the presence of a basement membrane, which provides physical support and anchors the epithelial layer to the underlying connective tissue. Additionally, epithelial membranes often contain mucus-forming cells that produce mucus to protect and lubricate the epithelial surface.