What is the driver of the silver vehicle required to do according to the following picture?

1. A Honk loudly and proceed in the right lane, because the driver of the vehicle that exits from the parking space acts against the law.
2. B Slow down and allow the vehicle that exits from the parking space to merge in traffic.
3. C Drive faster and move to the left lane.
4. D Honk and continue driving without any change in position and speed.