What is sure test of magnetism?

Show that repulsion is sure test of magnetism.

consider the following statement A and B , and select the correct choice A: Repulsion is a sure test of magnetism. (B) : Magnetic induction precedes attration.

Repulsion is a sure test for magnetism.

Repulsion is the sure test for magnetism. Explain ?

Give Reason Repulsion is a sure test for magnetism.