What does the solid white line indicate?

• Passing or changing lanes is permitted.
• Passing or changing lanes is not permitted.
  Explanation:

  "A solid white line indicates that passing or changing lanes is not permitted. It is often used in areas where lane changes would be unsafe, such as near intersections or hazardous spots."
• Passing or changing lanes is only permitted for vehicles on the right side of the road.
• Passing or changing lanes is only permitted for vehicles on the left side of the road.