Juice containing sodium glycocholate is secreted under the influence of

The correct option is cholecystokinin.

Step-by-Step Explanation:
1. Identify the Substance: Sodium glycocholate is a primary bile salt. Bile salts are key components of bile juice, which is synthesized by the liver and stored in the gallbladder.
2. Understand the Secretion Mechanism: The release of bile juice (containing sodium glycocholate) into the duodenum is regulated by gastrointestinal hormones.
3. Role of Cholecystokinin (CCK): When food containing fats and proteins enters the duodenum, it triggers the mucosal cells of the duodenum to secrete the hormone cholecystokinin.
4. Action of CCK: CCK travels through the bloodstream and acts on the gallbladder, causing it to contract, and simultaneously relaxes the sphincter of Oddi. This actions forces the stored bile juice (including sodium glycocholate) to flow into the duodenum to aid in the emulsification and digestion of lipids.

Therefore, the secretion of juice containing sodium glycocholate is stimulated under the influence of cholecystokinin.