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: Medicine
Non-parenteral hepatitis is: 
Select and explain. 
A. Hepatitis A, B. Hepatitis  B, C. Hepatitis  C, D. Hepatitis  D
A: Hepatitis A
Answer: A: Hepatitis A 
Explanation: None