Frank wants to convert an iron rod into a permanent magnet. He has a bar magnet and an iron rod with endsIandII,as shown in the given figure.

He wants endIof the rod to be the South Pole. He knows that by touch-stroke method, an ordinary iron bar can be changed into a permanent magnet.

Which figure represents the correct process that Frank should adopt to change endIof the iron rod into South Pole?

He should stroke the second end of the iron bar with  the north pole of the bar magnet again and again  so that the first end of the iron bar would become south pole.

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