This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Mycobacterial Infections, Subject name: Dental
Erythema nodosum can be seen with: 
Select and explain. 
A. OC pills, B. Barbiturates, C. ACE inhibitors, D. Sulfonylureas
A: OC pills
Answer: A: OC pills 
Explanation: Etiology of erythema nodosum Infections: e.g., Streptococcal, Fungal, Mycobacterial, Yersinial. Drugs: e.g., Sulfas, Penicillins, Oral contraceptives. Sarcoidosis Idiopathic causes