Which of the following statements about the syncytiotrophoblast is false?

A) It forms the developing embryo.
B) It is composed of a nondividing, multinucleated cell.
C) It is nonantigenic, so that it triggers no immune response.
D) It invades the maternal tissues that compose the endometrium of the uterus.
E) It forms lacunae.

Syncytiotrophoblast

A layer of multinucleated cells that form the outer layer of the blastocyst, contributing to the formation of the placenta in pregnancy.

Nonantigenic

Refers to substances that do not trigger an immune response by the body.

Endometrium

Mucous membrane composing the inner layer of the uterine wall; consists of a simple columnar epithelium and a lamina propria that contains simple tubular uterine glands.