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What does a single broken yellow line in the center of a two-way road indicate?

- A.a vehicle may not pass.
- B.a vehicle may pass if it is safe.✓
- C.a vehicle is allowed to park.
- D.a vehicle may make a U-turn.
Why: A single broken yellow line indicates that passing is allowed in both directions when it is safe. It separates traffic moving in opposite directions.
