The correct answer is B) digestive.
Celiac disease is a condition that prevents people from eating food products that contain gluten. Gluten is a protein compound found in some foods, such as wheat products. For people with celiac disease, a protein in gluten interferes with the absorption of various nutrients, minerals, and vitamins. The digestive system is responsible for breaking down gluten.
Celiac disease damages the small intestine when consuming foods with glute. When the patient eats some gluten, the immune system affects the intestine. So be careful because the protein Gluten is found in foods such as barley, rye, and wheat. So be careful with your food and if you present irritation problems, modify your diet or check a doctor's opinion.
The other options of the question were A) circulatory. C) excretory. D) integumentary.