Complete the following statements with an appropriate word / term to be filled in the blank space(s).

The magnetic lines of force are the lines drawn in a magnetic field along which a _______ pole would move.

The correct option is C north magnetic
The magnetic lines of force are the lines drawn in a magnetic field along which a north magnetic pole would move.
If you put a north magnetic pole as a test pole in a magnetic field then it will repel by the north pole of the magnet and attract by the south pole of it. So it will run a close loop depicting the magnetic field locus.