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Conductors have free electrons and they conduct electrical current very easily.

Good conductors are the following materials: copper, aluminum, gold, and silver. Glass, air, plastic, rubber, and wood on the other hand are insulators .

From the given options, only wet skin (answer D) is a good conductor of electricity.

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Answer:

D. Wet skin

Explanation:

Conductivity is the property of matter to allow electrical charges to flow within it. Good conductors, like metals, are materials that allow electrons to move easily. The same happens in the  Wet skin, when in contact with electricity it quickly receives the current of energy (and causes shock). Bad conductors such as rubber, glass and plastic are important for insulating electricity. They are therefore used as insulators, for example plastic wires.

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