Final answer:
The true statement concerning the oviduct is that its epithelium contains peg cells which help in nourishment and movement of the sperm and oocyte. The epithelium also includes ciliated columnar cells, aiding in the transport of the oocyte to the uterus.
Step-by-step explanation:
(B) Its epithelium contains peg cells.
The oviduct, also known as the fallopian tube, is lined by ciliated columnar epithelial cells, which are tall cells with cilia on their surfaces. The epithelium of the oviduct contains specialized cells known as peg cells, which are involved in the secretion of a fluid that provides nutrition to the sperm and the oocyte. Additionally, fertilization most commonly occurs in the ampulla, which is a section of the oviduct, but not in the fimbriated portion.
The epithelium of the oviduct does not function in nourishing trilaminar germ discs or contain goblet cells, and it is not lined by a simple cuboidal epithelium. The oviduct's role is critical in enabling the movement of the oocyte from the ovary to the uterus, and providing an environment that supports fertilization and early development of the embryo.