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Which of the following is not correct about the magnetic field lines?

A) The magnetic field lines of a magnet form continuous closed loops.                                         

B)             The tangent to the field line at a given point represents the direction of the net magnetic field B at that point.   

C)             The larger number of field lines crossing per unit area, the stronger is the magnitude of the magnetic field B.       

D)             The magnetic field lines may intersect to each other in certain conditions.