Answer: The correct answer is "Magnets have magnetic fields".
Step-by-step explanation:
Magnet has two poles: South pole and North pole. Same poles of the magnet repel each other. The opposite poles of the magnet attract each other. There is strong magnetic force of repulsion between the same poles of the magnet. There is strong magnetic force of attraction between the opposite poles of the magnet.
Magnetic field lines: These field lines are the area around the magnet in which the magnetic force can be experienced.
The magnetic field is stronger at the ends. The strength of the magnetic field decreases with the distance from the poles.
Therefore, from the given options, "magnets have magnetic field" which best describes a magnet's ability to act at a distance.