Compass needles align as permanent magnets in external fields

Steps:

• Compass needles are permanent magnets with fixed north and south poles.
• The north pole of the compass is attracted to the south pole of the bar magnet.
• In the shown position, end X points toward the bar magnet's south pole, indicating X is the compass's north pole.
• This alignment follows the law that unlike magnetic poles attract.

Why C is correct:

• Compass needles are permanent magnets by design, and X aligns as the north pole per the attraction law (unlike poles attract).

Why the others are wrong:

• A: Compass is permanent, not induced; induced magnets form temporarily in fields.
• B: Same as A, plus X is north, not south.
• D: X is north, not south, based on attraction to the bar magnet's south pole.

Final answer: C