Which of the following joint problems is the result of an autoimmune problem? 1) osteoarthritis 2) bursitis 3) rheumatoid arthritis (ra) 4) tendonitis

3) Rheumatoid arthritis (RA)

Explanation:

Osteoarthritis: it happens when the cartilage, that covers the surface of the bones helping them  move freely against each other, thins and the surface becomes rougher, making the joint to stop moving as smoothly as it should.Bursitis: is a painful condition that affects the small, fluid-filled sacs that cushion the bones (bursae), tendons and muscles near the joints when it become inflamed. Some causes of bursitis are repetitive motions or positions that put pressure on the bursae around a joint. Rheumatoid arthritis (RA): is an auto-immune condition in which the immune system, gets confused and starts to attack your body’s healthy tissues generating inflammation in your joints, this causes the tissue that lines the inside of joints (the synovium) to thicken, resulting in swelling and pain in and around the joints.Tendonitis: also known as tendinitis, is the inflammation of a tendon. It happens when a person overuses or injures a tendon, is linked to an acute injury with inflammation.

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