Choose your answer?

During science class, students combined 1 kg of iron filings with 1 kg of sand to create a mixture. Which of the following methods would be best for separating the iron filings from the sand?

Available choices: A). Stir the mixture into hot water to dissolve the sand.; B). Strain the mixture through a paper filter to collect the sand.; C). Drag a magnet through the mixture to attract the iron filings.; D). Shake the mixture to cause the iron filings to settle to the bottom.;
C).