A student designs an experiment to test the conductivity of distilled water and salt water. The experimental set-up and results are shown below. Which of the following BEST explains why salt water helped conduct electricity?
A
Salt is a weak electrolyte and when dissolved in water, the sodium and chlorine ions are separated and carry electricity through the water.

B
Salt is a strong electrolyte and when dissolved in water, the sodium and chlorine ions bond with water molecules to produce electricity.

C
Salt is a strong electrolyte and when dissolved in water, the sodium and chlorine ions are separated and carry electricity through the water.

D
Salt is a weak electrolyte and when dissolved in water, the sodium and chlorine ions bond with water molecules to produce electricity.