What should you anticipate?

In this scenario, you correctly selected that the large vehicle ahead (such as a truck) may swing outwards even more and may come to a sudden stop. This matches typical behavior for large vehicles about to make a turn—especially a right turn—because they often need extra space and may maneuver outward before fully turning. Additionally, they may stop abruptly to wait for a safe gap or due to obstacles.

The answer about the vehicle remaining stationary in the right lane is incorrect because a turning vehicle is unlikely to remain still in its current lane.

The key rule here is to expect wide or sudden movements from large vehicles signaling a turn, and always be ready to react safely. This helps you anticipate potentially dangerous changes and keeps you prepared for unexpected stops or swerves.