A number is divisible by 12 if it is divisible by both 3 and 4.

• 4818: Sum of digits \(= 4+8+1+8=21\) (divisible by 3); last two digits 18 (not divisible by 4) — fails.
• 4818 ÷ 12 = 401.5 — actually let us recheck: \(4818 \div 4 = 1204.5\) — not exact.
• 4404: \(4+4+0+4=12\) ✓; \(04 \div 4 = 1\) ✓. \(4404 \div 12 = 367\) ✓

Answer key gives B (4818) but by divisibility rules 4404 is correct. Students should verify directly.