Final answer:
The correct answer to the question is D, All of the above, meaning drivers are not permitted to pass on the left if they can't return to the right lane safely before encountering oncoming traffic within 200 feet if there is a curve on a two-way road with an obstructed view, or if there is a solid yellow center line in their lane.
Step-by-step explanation:
Drivers are not allowed to pass a vehicle on the left if:
- They cannot safely return to the right lane before any oncoming vehicle comes within 200 feet of them.
- They approach a curve on a two-way road and cannot see around it.
- Their lane has a solid yellow center line.
- All of the above conditions apply.
Therefore, the correct answer to the question is D, All of the above.