Question

1. which autoimmune diseases is caused by attacks on the small intestine?

type 1 diabetes
celiac disease
rheumatoid arthritis
pernicious anemia

Explanation:

Celiac disease is an autoimmune disorder where the immune system attacks the small intestine when gluten is consumed. Type 1 diabetes involves the immune system attacking pancreatic beta - cells. Rheumatoid arthritis is an autoimmune disease that mainly affects the joints. Pernicious anemia is due to the immune system attacking cells in the stomach that produce intrinsic factor.

Answer:

B. celiac disease