Pedro uses a bar magnet to pick up a nail. He then touches the tip of the nail to some staples. Why do some of the staples stick to the nail?
A
The nail has become a temporary magnet, while the bar magnet remains a permanent magnet.B
The nail has become a permanent magnet, while the bar magnet has become a temporary magnet.C
The nail and the bar magnet are now both permanent magnets.D
The nail and the bar magnet are now both temporary magnets.