A is or c is the correct answer
Answer: you didn't state the answers to choose from so i"ll just list common organic molicules: nucleic acids, proteins, carbohydrates and lipids.
Explanation:
The duodenum can therefore be subdivided into four segments: the superior, descending, horizontal, and ascending duodenum. ... The three regions of the small intestine are the duodenum, jejunum, and ileum. The jejunum is about 0.9 meters (3 feet) long (in life) and runs from the duodenum to the ileum.
