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
All of the following statement about plague are wrong except- 
Select and explain. 
A. Domestic rat is main reservoir, B. Bubonic is the most common variety, C. The causative bacillus can survive upto 10 years in the soil of rodent burrows, D. Incubation period for pneumonic plague is one to two weeks
B: Bubonic is the most common variety
Answer: B: Bubonic is the most common variety 
Explanation: None