Memory-based acquired immunity in higher vertebrates relies on the ability to distinguish foreign molecules from self-cells. Occasionally, due to genetic or unknown reasons, this mechanism fails and the body attacks its own cells. Which of the following disorders is a classic example of this phenomenon?

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Autoimmunity is a condition where the immune system mistakenly attacks the body's own cells due to a failure in distinguishing foreign molecules from self-cells. Rheumatoid arthritis is a classic example of an autoimmune disease where the immune system attacks the synovial membrane of joints. Osteoarthritis is a degenerative joint disease caused by wear and tear of cartilage. Gout is a metabolic disorder caused by the deposition of uric acid crystals in joints. Tetany is a muscular disorder caused by low calcium le