Inside the magnet, the direction of field lines is form:

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North to south

South to north.

Depends on the position of the earth.

None of them.

answer is B.

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Detailed Solution

Concept: Magnetic field lines are the paths that a north monopole would take if it were free to roam around on its own. In the vicinity of a magnet, these lines can be seen. They usually start at the north pole (N) , form continuous loops, and then end at the south pole (S) (S).
The density of these field lines is highest near the magnet's poles and decreases as one walks away from it. Around the poles, the magnetic effect reaches its maximum magnitude.
These lines, on the other hand, tend to migrate from the south pole to the north pole inside the magnet. Inside the magnet, they are practically parallel to one another.
Hence, option 2 is correct.

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