A short circuit has very little or zero what?

In a short circuit, the defining characteristic is that there is very little or virtually zero resistance. When resistance is extremely low, it allows a large amount of current to flow through the circuit, which can lead to overheating and potential damage if not controlled by protective devices.

This phenomenon occurs because a short circuit typically involves a direct connection between two points of differing voltage, which bypasses the intended load and minimizes resistance. Therefore, the correct choice emphasizes that resistance is the critical factor that is nearly absent during a short circuit event, facilitating the surge in current that defines the condition.