Which Statement Best Explains the Process of Absorption

Which statement best explains the process of absorption?

A) Absorption is the process of taking food into the mouth and starting it on its journey through the digestive tract.
B) Absorption releases digestive juices (containing enzymes, acids, bases, mucus, bile, or other products that facilitate digestion) .
C) Absorption is the movement by the muscular components of the digestive tube, including processes of mechanical digestion; examples include peristalsis and segmentation.
D) Absorption is the passage of substances (notably digested foods, water, salts, and vitamins) through the intestinal mucosa into the blood or lymph.