Read the Health Record Excerpt: "Endometrial Bx: Hyperplasia

Read the health record excerpt: "Endometrial Bx: Hyperplasia." According to the excerpt, what kind of diagnostic procedure did the patient undergo?

A) a record of a breast exam
B) a test used to detect cancer cells, most commonly in the cervix
C) an imaging procedure using sound waves emitted from a device inserted in the vagina
D) an instrument used to examine the vagina
E) the removal of a sample of the inner layer of the uterine tissue in order to examine it