Tight Junctions Are Cell- Cell Junctions Found Between Adjacent Cells

Tight junctions are cell- cell junctions found between adjacent cells of the epithelium that lines the small intestine. What is the function of these cellular junctions?

A) to attach epithelial cells to a basement membrane
B) to recognize pathogenic organisms present in the lumen of the small intestine
C) to seal the epithelium and prevent movement of substances between cells
D) to release digestive enzymes into the intestinal lumen