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: Social & Preventive Medicine
What is the recommended drug of treatment for brucellosis? 
Select and explain. 
A. Tetracycline, B. Doxycycline, C. Erythromycin, D. Azithromycin
A: Tetracycline
Answer: A: Tetracycline 
Explanation: The drug of choice for treatment of human brucellosis is tetracycline. Ref: Park 21st edition, page 266.