The correct option is D Both A and B
The small intestine is the most important part of the digestive system has three parts such as the duodenum, jejunum and the ileum. The duodenum is a short structure which is continuous with the stomach, shaped like a "C" surrounding the head of the pancreas. Only the duodenum receives the secretions in the small intestine. This receives the gastric chyme from the stomach, digestive juices and enzymes from the pancreas and bile from the gall bladder.
Therefore, the correct answer is option C.