Answer:
The correct option is C) a line drawn to represent the direction the magnetic field traces out through space.
Explanation:
Consider the provided information.
The direction of magnetic field lines is defined as the direction in which a compass needle points to the north end.
Magnetic field lines are a visual method used for magnetic field representation. At any given position, they define the direction of the magnetic force on a northern monopole.
Hence, the correct option is C) a line drawn to represent the direction the magnetic field traces out through space.