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: Surgery
The most frequent symptom of gastric diverticulum is 
Select and explain. 
A. Epigastric pain, B. Haematemesis, C. Vomiting, D. Pain relieved by food
A: Epigastric pain
Answer: A: Epigastric pain 
Explanation: None