A neuron at rest exhibits a membrane potential, which is a difference in electrical charge between the inside and outside of the cell. Which statement best analyzes the underlying cause of this electrical difference?

A neuron at rest typically has a higher concentration of potassium ions (K+) inside and a higher concentration of sodium ions (Na+) outside. The interior of the neuron is negatively charged compared to the exterior. Considering these conditions, which statement best analyzes the forces that limit the net outflow of positively charged potassium ions, thereby helping to establish the stable resting electrical difference?