This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Brucella, Subject name: Microbiology
Mode of transmission of brucella is? 
Select and explain. 
A. Air, B. Water, C. Milk, D. Aerosol
C: Milk
Answer: C: Milk 
Explanation: Ans. (c) MilkRef: Jawetz 24/e, chapter 19