When two magnets with their north poles facing each other are brought close together, they will repel each other. The magnetic field lines in this case will indicate a repulsion between the like poles.
The correct option that describes this scenario is:
B) repulsion of the magnets with a gap between the north ends as they try to pull away from one another
This option accurately represents the concept that like poles repel and that there is a gap between the north ends because they are pushing away from each other.