This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Parathyroid and adrenal glands, Subject name: Surgery
[{'content': 'Absent parathyroid, thymic aplasia with immuno-deficiency and cardiac defects are features of: \nSelect and explain. \nA. Autoimmune polyglandular syndrome, B. Pendred syndrome, C. Di George syndrome, D. Lesch-Nyhan syndrome', 'role': 'user'}, {'content': 'Answer: C \nExplanation: DI-GEORGE SYNDROME Characterized by Congenital cardiac defects, paicularly those involving great vessels Hypocalcemic tetany due to failure of parathyroid development Absence of normal thymus, T-cell immunodeficiency', 'role': 'assistant'}]