This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T, Subject name: Pathology
[{'content': "Antigliadin antibodies are detectable in - \nSelect and explain. \nA. Tropica sprue, B. Whipple's disease, C. Celiac disease, D. Intestinal lymphoma", 'role': 'user'}, {'content': 'Answer: C \nExplanation: Noninvasive serologic tests generally are performed before biopsy. The most sensitive tests are the presence of IgA antibodies to tissue transglutaminase or IgA or IgG antibodies to deamidated gliadin TEXT BOOK OF ROBBINS BASIC PATHOLOGY NINTH EDITION PAGE.579', 'role': 'assistant'}]