When entering an expressway, in the acceleration lane you should:

Answer: B — Search for a gap in traffic and adjust your speed to the speed of the traffic.

When entering an expressway, it's crucial to search for a gap in traffic and adjust your speed to match the speed of the vehicles already on the expressway. This approach ensures a smooth merge into the flow of traffic, which is vital for safety. By finding an appropriate gap, you minimize the risk of collisions and create a situation where both you and the vehicles on the expressway can maintain a consistent speed. Accelerating in the acceleration lane allows you to gauge the speed of the oncoming traffic so that you can align your speed accordingly, making it easier to merge without causing disruptions or hazards. This technique not only promotes safer merging but also supports the overall efficiency of the expressway. Stopping to wait for a gap can create significant issues, as it can lead to confusion and disrupt the flow of traffic. Yielding to all vehicles on the expressway isn't practical since it would prevent you from merging effectively, and merging without concern for speed ignores the critical need to match the flow of traffic, which can lead to dangerous situations.