Biology

The correct answer is B. Intestine.

The intestines, specifically the small intestine, are responsible for absorbing nutrients into the bloodstream during the process of digestion. The small intestine is the primary site for nutrient absorption in the digestive system.

Option A, the mouth, is where the process of digestion begins, but it primarily functions in mechanical and chemical digestion, breaking down food into smaller pieces and mixing it with saliva. Nutrient absorption does not occur in the mouth.

Option C, the stomach, plays a crucial rol...