Staple is most likely to be attracted to a magnet among the options given. So the correct option in regards to the given question is option "B".
Among all the options given the book cannot be attracted by
the magnet as it is non-metallic in nature. Stone and eraser are also non-metallic
in nature and so a magnet cannot attract them. Only thing among the options
that can be attracted by the magnet is the staple as it is metallic in nature.
