Zack places iron filings on a piece of paper near a bar magnet. The iron filings quickly move and form a pattern around the magnet. Which argument does this evidence BEST support? (1 point)
A. Big magnets can attract more objects.
B. Only materials that are made of metal have a magnetic force.
C. Magnetic fields exist between objects that are not directly touching each other.
D. A magnet can attract all objects through different materials.