How Do Even the Lowest Single-Channel Conductance Gap Junctions Provide

How do even the lowest single-channel conductance gap junctions provide a significant path for current flow between cells?

A) Their single-channel conductance can be modified by neuronal activity.
B) There is a large driving force that favors ion movement across gap junctions.
C) They are typically expressed at a local high density.
D) Ions lose their hydration shell as they pass through the pore of gap junctions.
E) Even the lowest single-channel conductance gap junction forms a very wide pore for the movement of ions across the membrane.