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 of the following drugs results in the production of orange coloured urine ? 
Select and explain. 
A. Rifampicin, B. Isoniazid, C. Pyrazinamide, D. Ethambutol
A: Rifampicin
Answer: A: Rifampicin 
Explanation: None