This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Anti Microbial, Subject name: Pharmacology
Thioacetazone has cross resistance with - 
Select and explain. 
A. INH, B. Rifampicin, C. Ethionamide, D. Ethambutol
C: Ethionamide
Answer: C: Ethionamide 
Explanation: Ans. is 'c' i.e., Ethionamide o Thioacetazone has cross-resistance with ethionamide/prothionamide."A cross resistance between ethionamide and thioacetazone is reported"o Perchlozone also shows cross resistance with thioacetazone.