Cholecystokinin is one of the gastro-intestinal hormones. Identify its function from the following.
Stimulates gastric gland to produce gastric juice.
Stimulates exocrine part of pancreas to produce pancreatic juice.
Contraction of gall bladder for secretion of bile juice.
Inhibits the secretion of HCl in stomach
Cholecystokinin helps contraction of gall bladder for secretion of bile juice.