What Is a Benign Tumor

What is a benign tumor?

A) A mass produced by abnormal growth and division of cells that remains within the original tissue and does not spread.
B) A mass produced by abnormal growth and division of cells that spreads beyond the original tissue and usually threatens life.
C) A blockage of the blood vessels due to an accumulation of plaque.
D) A mass produced when auto-antibodies attack and destroy an organ.
E) A collection of blood vessels that are produced to serve a highly metabolic organ.