This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Skin
[{'content': 'Erythema nodosum is not seen in: \nSelect and explain. \nA. Primary TB, B. Sulfonamides, C. Giant cell aeritis, D. Streptococcal Infection', 'role': 'user'}, {'content': 'Answer: C \nExplanation: C i.e. Giant cell aeritis', 'role': 'assistant'}]