When are you permitted to pass another vehicle on its right side?

1. When a vehicle is driving slower than you on the left lane in front of you.
2. Correct answer: When you are driving in a right-turn-only lane.
3. Only when you are driving a motorcycle.
4. Only when you are driving in a left-turn-only lane.

WhyYou may pass on the right when you yourself drive in a right-turn-only lane. A slow vehicle on your left does not allow it by itself.