This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Drugs, Subject name: Skin
Which of the following drugs can cause exacerbation of psoriasis? 
Select and explain. 
A. Metformin, B. Interferon alpha, C. Lithium, D. All the above
D: All the above
Answer: D: All the above 
Explanation: Ans. is 'd' i.e., All the above Drugs which cause exacerbation of psoriasiso Antimalarials (chloroquine)o NSAIDso Carbamazepineo IFN-ao Lithiumo b-blockerso Sodium valproateo Metformino Corticosteroids withdrawalo ACE inhibitorso AT-II antagonistso Calcium channel blockers