How are you required to conduct yourself according to the following picture?

1. Correct answer: Continue driving normally, while paying attention to the other vehicles in your direction of driving.
2. Slow down and allow vehicles to quickly bypass you from the left in order to merge into the left lane.
3. Drive on the right lane and prepare to move to the left lane as soon as the number of lanes increases.
4. Move to the left lane, because the right lane is about to terminate.

WhyThere is no danger ahead, so drive as usual, watching the vehicles going your way. The sign does not require changing lanes.