Autoimmune diseases are the disease caused by the body attacking itself.
What is disease?
- "A disease is a specific aberrant state that has a negative impact on the structure or function of all or part of an organism and is not caused by an external harm."
What do you mean autoimmune diseases?
- "A condition in which your immune system wrongly targets your body is known as autoimmune disease."
- The immune system normally defends us against infections like bacteria and viruses. When it senses foreign invaders, it sends out an army of fighter cells to battle them.
- Rheumatoid arthritis, multiple sclerosis, etc., are examples of autoimmune diseases.
Hence, the correct option is D. autoimmune diseases.
To know more about autoimmune diseases here
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