Like poles repel in magnet arrangements

Steps:

• Recall magnetic rule: like poles (N-N or S-S) repel; unlike poles (N-S or S-N) attract.
• Analyze each setup by identifying facing poles based on standard diagrams.
• For arrangement 1: unlike poles face, so attract.
• For arrangement 2: like poles face, so repel; same for 3, repel; 4 attracts.

Why C is correct:

• Option C identifies arrangements 2 and 3, where like poles face each other, causing repulsion per the law of magnetic forces on poles.

Why the others are wrong:

• A: Includes 1 (attracts) and 2 (repels), mixes outcomes.
• B: Includes 1 (attracts) and 4 (attracts), no repulsions.
• D: Includes 3 (repels) but 4 (attracts), incomplete.

Final answer: C