This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T., Subject name: Physiology
Hydrochloric acid is produced by? 
Select and explain. 
A. G-cell, B. D-cell, C. Oxyntic cells, D. Chief cells
C: Oxyntic cells
Answer: C: Oxyntic cells 
Explanation: Ans. C Oxyntic cellsRef: Ganong, 23rd ed. pg. 431-32Secretion in Stomach* Oxyntic cell (parietal cell) secretes: HCl and intrinsic factor of castle* Chief cell (zymogen or peptic cell) secrete: pepsinogen* G cell secrete: Gastrin* D cell secrete: Somatostatin* ECL cells secrete: Histamine