Final answer:
The peritoneum, pericardium, and pleura are serous membranes, which are epithelial membranes that cover organs and secrete a lubricating fluid reducing friction. Option A is correct.
Step-by-step explanation:
The peritoneum, pericardium, and pleura are examples of a serous membrane, which is a type of epithelial membrane. Serous membranes line the coelomic cavities of the body that do not open to the outside and cover the organs within these cavities.
These include the pleura covering the lungs, the pericardium covering the heart, and the peritoneum covering abdominal organs. These membranes secrete a serous fluid that lubricates and reduces friction between organs, facilitating a smooth movement and reducing the potential for damage due to abrasion.