Which set of accessory organs directly adds fluids into the duodenum during digestion?

• A. Spleen and appendix, lymphoid organs near the gut but not involved in secreting digestive fluids into the small intestine
• B. Stomach and pyloric sphincter, organs that process and regulate chyme leaving the stomach but are not accessory fluid-secreting organs into the duodenum
• C. Liver, gallbladder, and pancreas
• D. Salivary glands and tonsils — structures that release saliva and immunologic secretions in the oral cavity but do not empty fluids directly into the duodenum

Answer: (C)