This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Immune system, Subject name: Medicine
Best marker for drug induced lupus is 
Select and explain. 
A. Anti histone antibodies, B. Anti ds DNA, C. ANA, D. Anti smith Ab
A: Anti histone antibodies
Answer: A: Anti histone antibodies 
Explanation: Ref image - Harrison's internal medicine 20e p2517