Julie’s town uses single-stream recycling, so julie puts all of her household recyclables in a single container to be picked up. the recycling plant must sort out the different materials, including paper, cardboard, different types of plastic, glass bottles and jars, aluminum drink cans, and steel food cans. how would an electromagnet be used in this type of recycling plant? a) to remove plastic bottles from glass bottlesb) to divide food cans from soft-drink cansc) to separate paper from cardboardd) to gather colored glass from colorless glass