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
Aspartame is a: 
Select and explain. 
A. Non-caloric sweetener, B. Caloric sweetener, C. Sugar complex, D. None of the above
A: Non-caloric sweetener
Answer: A: Non-caloric sweetener 
Explanation: None