The correct answer is D) after torque causes line pull to exceed the rated capacity of the winch. Electric cargo winches are equipped with overload safety devices that cut the current to the winch motor when the line pull exceeds the rated capacity of the winch. This is to prevent damage to the winch, the cargo, or the surrounding equipment. The overload safety device is designed to activate after the torque on the winch causes the line pull to reach the rated capacity, rather than before the safe working load or breaking strength of the fall is reached. The other answer choices are incorrect because they do not accurately describe how the overload safety device functions. Option A is incorrect as the device does not activate based on the breaking strength of the fall. Option B is incorrect as it does not activate before the safe working load is reached. Option C is incorrect as it does not activate before the rated capacity of the winch is exceeded.