When Asha suspended four bars of different materials from a pole and brought the North pole of a bar magnet near part P and Q of each bar one by one as shown in figure, then observations she recorded are as follows:
Which of the following sets correctly represents metal bars I, II, III and IV?
|Bar I||Bar II||Bar III||Bar IV|
|A||Magnet||Stainless steel Bar||Magnet||Iron bar|
|B||Magnet||Iron bar||Magnet||Glass bar|
|C||Stainless steel bar||Magnet||Iron bar||Magnet|
|D||Magnet||Iron bar||Glass bar||Stainless steel bar|