What must you do when entering an interstate highway from the acceleration lane?

When entering an interstate highway from the acceleration lane, it is essential to keep pace with other traffic or obey you are following any posted speed limits. This practice is crucial for maintaining safety and ensuring a smooth transition onto the highway. The acceleration lane is specifically designed to allow drivers to increase their speed to match the flow of traffic on the highway before merging.

Merging at an appropriate speed helps prevent accidents and maintains the flow of traffic. This is particularly important because highway traffic typically moves at higher speeds, and entering too slowly can create bottlenecks or increase the risk of collisions with vehicles on the highway that are traveling at normal speeds.

The other options, such as stopping at the entrance, merging regardless of traffic conditions, or adjusting speed to the lowest limit, would not promote safe merging practices and could lead to dangerous situations on the road. Stopping can cause disruptions and potential rear-end collisions, while merging without regard to traffic can cause accidents and slowdowns. Adjusting to the lowest limit would impede traffic flow and is not advisable in a high-speed environment.