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
Erythema nodosum is not seen in: 
Select and explain. 
A. Primary TB, B. Sulfonamides, C. Giant cell aeritis, D. Streptococcal Infection
C: Giant cell aeritis
Answer: C: Giant cell aeritis 
Explanation: C i.e. Giant cell aeritis