Parietal cells of the gastric glands in the stomach produce

HCL and intrinsic factor

Explanation:

The oxyntic cells/ delomorphous cells also called as parietal cells. The cells are present in the gastric glands the fundus lining and cardia. These  parietal cells are the epithelial cells. The cells secretes intrinsic factor and HCL (hydrochloric acid).

The hydrochloric acid secreted helps in converting inactive pepsinogen to active enzyme pepsin. This helps to break bond between amino acids. This process is called proteolysis. The intrinsic factor helps in vitamin B12 absorption from the intestine and absence of this factor is responsible for pernicious anemia.  

b is the best answer for this question.