What Theory Is Used to Describe the Cause of Endometriosis

What theory is used to describe the cause of endometriosis?

A) Obstruction within the fallopian tubes prevents the endometrial tissue from adhering to the lining of the uterus.
B) Endometrial tissue passes through the fallopian tubes and into the peritoneal cavity and remains responsive to hormones.
C) Inflammation of the endometrial tissue develops after recurrent sexually transmitted diseases.
D) Endometrial tissue lies dormant in the uterus until the ovaries produce sufficient hormone to stimulate its growth.