This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pharmacology
Which anti tubercular drug will cause transient memory loss? 
Select and explain. 
A. Ethionamide, B. INH, C. Ethambutol, D. Pyrazinamide
B: INH
Answer: B: INH 
Explanation: None