I WILL MARK BRAINLIEST The image below shows villi within a fold in the lining of the small intestine.

What is the function of folds and villi?

A.

trapping food particles that flow through the small intestines

B.

expanding volume to increase gas exchange from the respiratory system to the digestive system

C.

increasing surface area to improve nutrient absorption between the digestive and circulatory systems

D.

allowing particles in the small intestines to flow from the jejunum to the ileum