What must a driver do before making a left turn on red?

• Come to a complete stop
• Yield to all traffic
• Yield to all pedestrians
• All of the above
  Explanation:

  "Unless prohibited by a sign at the intersection, making a 'left turn on red' from the left lane of a one-way street onto another one-way street where traffic moves to the driver's left is permissible. You may proceed only after coming to a complete stop, yielding to all traffic, stopping for pedestrians, and ensuring that the turn can be completed safely."