What does this road sign indicate to drivers regarding the school zone and speed limit ahead?

• The school zone continues, and the speed limit remains at 30 km/hr.
• The school zone ends ahead, and the new maximum speed limit is 50 km/hr.
  Explanation:

  "This sign shows that the school zone ends ahead with the new maximum speed limit of 50 km/hr."
• The school zone ends ahead, but the speed limit remains at 30 km/hr.
• The speed limit of 50 km/hr applies only during school hours.