Final answer:
Based on the field lines, the poles of the magnets are X: south and Y: north.
Step-by-step explanation:
The diagram shows the field lines near the poles, X and Y, of two magnets. Based on the field lines, the poles of the magnets are:
This is because the magnetic field lines point away from the north pole of a magnet and towards its south pole. Therefore, the field lines near pole X indicate it is a south pole, while the field lines near pole Y indicate it is a north pole.