Rheumatoid arthritis is considered a(n) disease because it involves the body mistaking its own healthy cells for invaders and repeatedly attacking them. anti-immune autoimmune immortal mortal

The correct answer is B. Autoimmune

Explanation:

An autoimmune disease refers to any disease in which the immune system that is in charge of reacting and attacking external pathogens such as viruses or bacteria, attacks the body including healthy cells. Examples of autoimmune diseases include lupus, psoriasis, and rheumatoid arthritis. In the case of Rheumatoid arthritis the immune system attacks different organs or tissues in the body which leads to inflammation, this inflammation occurs mainly in the joints, although it can also happen in the eyes, heart or skin. Therefore, Rheumatoid arthritis is considered an autoimmune disease as it involves the body mistaking healthy cells for invaders.