Two point masses 3 kg each at the ends of a massless rod of length 4 m. I about axis through center perpendicular to rod:

Each mass at distance 2 m from center. We have I = sum m × r². That is I = 2 × (3 × 4). So I = 24 kg m². Wait, recompute: 3 × 2² + 3 × 2² = 12 + 12 = 24. So I = 24. Hmm option B says 24 — I should select B.