The inner wall of the small intestine has finger-like projections called villi which are rich in blood. These villi have a large surface area for digestion
A) The villi increase the absorption of nutrients in the small intestine.
B) Villi reduce the surface area for digestion in the small intestine.
C) Villi provide structural support to the small intestine.
D) The villi contain enzymes for digestive processes.
