Six cars — red, blue, green, yellow, white, black — are parked in spots 1-6. Red is in spot 1 or 6. Blue is adjacent to green. Yellow is not adjacent to red. Which arrangement is possible?

✓ Correct Answer: Option C

A: Yellow-2 adjacent to Red-1 ✗. B: Blue-2 adjacent to Green-3 ✓, but Yellow-4 not adjacent to Red-1 ✓ — actually this works. C: Red-6, Yellow-5 adjacent to Red-6 ✗. Let me re-check: C has Yellow-5 next to Red-6 ✗. D: Blue-3 not adjacent to Green-2 ... Green-2 and Blue-3 ARE adjacent ✓. Yellow-5 not adjacent to Red-1 ✓. D works. Actually B: all constraints satisfied. B is valid.