In one child’s toy, metal fish are removed from a model pond by means of a metal rod. The fish are magnetically attracted to the tip of the rod. No magnetic force acts between the fish themselves. What materials could the fish and the rod be made from?
- Afish: aluminium; rod: soft iron
- Bfish: aluminium; rod: steel
- Cfish: soft iron; rod: soft iron
- Dfish: soft iron; rod: steel