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: Pathology
Which of the following produce gastrin? 
Select and explain. 
A. Mucous neck cells, B. Parietal cells, C. Chief cells, D. Endocrine cells
D: Endocrine cells
Answer: D: Endocrine cells 
Explanation: D: Endocrine cells produce gastrin.
A: Mucous neck cells are found in the necks of the gastric pits.
B: Parietal cells produce HCl.
C: Chief cells produce pepsinogen
E: Foveolar cells or surface mucous cells are mucus-producing cells which cover the inside of the stomach, protecting it from the corrosive nature of gastric acid.