Concept:A mixture of iron filings and sulphur can be separated using their different physical properties, especially magnetism.
Explanation:Iron is a magnetic material, while sulphur is not magnetic.
When a magnet is brought near the mixture, the iron filings are attracted to the magnet.
The sulphur particles are left behind because they are not attracted by the magnet.
Thus, the magnet physically pulls the iron filings away from the sulphur.
This simple separation technique is called magnetic attraction or magnetic separation.
It does not involve heating, melting, or dissolving the mixture.
Therefore, the correct method is the one that uses a magnet to separate the components.
Answer:A. Magnetic attraction