This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Lichen planus and Other papulosquamous disorders, Subject name: Dental
Drugs causing Pityriasis rosea-like drug eruptions : 
Select and explain. 
A. Cyclosporine, B. Steroids, C. Gold, D. Methotrexate
C: Gold
Answer: C: Gold 
Explanation: The best-known drug cause of a pityriasiform rash is gold therapy. Drugs causing pityriasis rosea-like reactions. Acetylsalicylic acid Griseofulvin Allopurinol Hydrochlorothiazide Isotretinoin Bismuth Methoxypromazine Barbiturates Metronidazole b-Blockers Nimesulide