When should you use low-beam headlights?

• When there is oncoming traffic at night, even when the highway is not divided.
• When there is oncoming traffic at night, even when the highway is divided.
  Explanation:

  "Use low-beam headlights at night when there is oncoming traffic, even if the road is divided, to avoid blinding other drivers."
• When there is incoming traffic during the day, even when the highway is divided.
• None of the above.