Answer: The correct answer is A) Duodenum.
Small intestine is the part of GI ( gastrointestinal tract) that is located between stomach and large intestine. It is the site of final digestion of food and absorption of maximum nutrients and minerals.
It is primarily divided into three parts, which are Duodenum, jejunum, and ileum.
Duodenum forms the first region of the small intestine, which is shortest in size and is the site of preparation for absorption of nutrients. It receives pancreatic juice and bile, which perform final digestion of food.