Final answer:
The correct answer is C. The cytoskeleton of one cell is physically connected to the plasma membrane of the other cell through gap junctions.
Step-by-step explanation:
Gap junctions in animal cells are channels between adjacent cells that allow for the transport of ions, nutrients, and other substances, enabling communication between cells. They are like plasmodesmata in plant cells, which are also channels between adjacent plant cells.
However, their structures differ. Gap junctions connect the cytoplasm of one cell to the cytoplasm of the other, while plasmodesmata connect the cytoplasm of one cell to the cytoplasm of the other through the cell wall.