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: Dental
Xylitol is 
Select and explain. 
A. Caloric sweetener, B. Non caloric sweetener, C. Low caloric artificial sweetener, D. Low caloric natural sweetener
A: Caloric sweetener
Answer: A: Caloric sweetener 
Explanation: None