2 Which statement best explains why metal wires are often covered with plastic?
A Plastic is an insulator that helps limit the amount of electrical charge leaving a wire.
B Materials like plastic have many free electrons that help efficiently conduct charge in a wire.
C Wires covered with plastic can heat up quickly to improve the movement of electrons in a wire.
D A plastic covering improves the flow of electrical current by increasing the resistance of a wire.

Question

2 Which statement best explains why metal wires are often covered with plastic?
A Plastic is an insulator that helps limit the amount of electrical charge leaving a wire.
B Materials like plastic have many free electrons that help efficiently conduct charge in a wire.
C Wires covered with plastic can heat up quickly to improve the movement of electrons in a wire.
D A plastic covering improves the flow of electrical current by increasing the resistance of a wire.