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
Which of the following is an autoimmune gastric disease? 
Select and explain. 
A. Type A gastritis, B. Type B gastritis, C. Atrophic gastritis, D. Erosive gastritis
A: Type A gastritis
Answer: A: Type A gastritis 
Explanation: None