Question

which gives epithelial cells the ability to withstand significant mechanical stress? gap junctions desmosomes connexons occludins tight junctions

Explanation:

Desmosomes are strong cell - cell adhesion structures that provide epithelial cells with the ability to withstand mechanical stress. Gap junctions and connexons are for inter - cellular communication, occludins are part of tight junctions which mainly function in preventing paracellular transport, and tight junctions are more about creating a barrier than withstanding mechanical stress.

Answer:

B. Desmosomes