The Digestive System Is an Example of Which of the Following

Multiple Choice

The digestive system is an example of which of the following?

A) an organ system that includes the liver and has,as its only function,the secretion of chemical messengers that regulate food intake.
B) an organ system that includes the gall bladder and has,as one of its functions,the absorption of nutrients into the blood.
C) the only organ system involved in the ingestion,digestion,absorption and elimination of food.
D) an organ system that includes the pancreas which is also part of the nervous system.