This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Thyroid Gland, Subject name: Surgery
[{'content': 'Goitrogens include: \nSelect and explain. \nA. Papaya, B. Spinche, C. Cabbage, D. Orange', 'role': 'user'}, {'content': 'Answer: C \nExplanation: (Cabbage): Ref: 782-LB (777-B & L 25th)GOITROGENS: are the vegetables of the brassica family (cabbage, kale and rape) contain thiocyanats, drugs such as PAS, and of course, the anti-thyroid drugs* Surprisgly enough, iodides in large quantities are goitrogenic because they inhibit the organic binding of iodine and produce an iodide goitre* Excessive iodine intake may be associated with an increased incidence of auto immune thyroid disease', 'role': 'assistant'}]