Question

in an illustration, lines of force are drawn around a magnet to illustrate the magnetic
field.
induction.
poles.
force

Explanation:

Magnetic field lines (lines of force) are used to represent the magnetic field around a magnet. Magnetic induction is about the process of inducing magnetism, poles are the ends of a magnet, and "force" here is too vague. So the correct term is "field".

Answer:

A. field