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
The mechanisms by which cholera might be maintained during the intervals between peak cholera seasons is - 
Select and explain. 
A. Carrier status in animals, B. Carrier status in man, C. An environmental reservoir, D. Continuous transmission in man
D: Continuous transmission in man
Answer: D: Continuous transmission in man 
Explanation: None