Final answer:
Rheumatoid arthritis is the autoimmune disease where the immune system attacks its own joint tissues, among other autoimmune conditions such as type 1 diabetes and systemic lupus erythematosus.
Step-by-step explanation:
The disease that results when a person's immune system no longer recognizes body tissues as self and attempts to destroy them is known as an autoimmune disease. In this case, the correct answer is B) Rheumatoid arthritis. Rheumatoid arthritis is an autoimmune condition where the immune system mistakenly attacks the joints, causing inflammation, pain, and eventually damage to the joint tissue.
Autoimmune diseases are caused by a breakdown in immunological tolerance. The immune system, which normally protects the body against pathogens, begins to attack its own body's cells. While many autoimmune diseases are difficult to cure, their symptoms can be managed with medications such as anti-inflammatory and immunosuppressive drugs.