- Chemical, potential energy is stored in a battery.
- The negative end of a battery is connected to a wire.
- The wire loops numerous times around an iron nail.
- The wire returns to the positive end of the battery.
What happens to the nail?

A) It gains a negative charge.
B) It gains a positive charge.
C) It repels other iron items, such as paperclips.
D) It attracts other iron items, such as paperclips.