How Do Nonspiking Neurons Function Even Though Their Depolarization Signal

How do nonspiking neurons function even though their depolarization signal significantly degrades with distance?

A) Voltage-gated Na⁺ channels are replaced by ligand-gated Na⁺ channels.
B) These neurons are very short, so there is no major signal decrement.
C) There are sufficient numbers of voltage-gated Na⁺ channels to convey the signal without major decrement.
D) Voltage-gated K⁺ channels compensate for the lack of voltage-gated Na⁺ channels.