Question

question 13
an autoimmune disease that attacks the joints is
rheumatoid arthritis
lyme disease
osteoarthritis
arthralgia
multiple sclerosis

Explanation:

Rheumatoid arthritis is an autoimmune disease where the immune system mistakenly attacks the joints. Lyme disease is caused by a bacterium transmitted by ticks. Osteoarthritis is due to wear - and - tear of joints. Arthralgia is just joint pain (not a disease). Multiple sclerosis affects the central nervous system.

Answer:

rheumatoid arthritis