Ace the Illinois Driving Permit 2025 – Drive into Your Future with Confidence!

The correct understanding when encountering a sign that indicates "divided highway begins" is primarily focused on the road configuration ahead. This sign typically indicates that the roadway will split into two separate directions, with a median or barrier separating the flows of traffic. While it might not directly indicate a curve, drivers should be prepared for changes in the road structure, which can include right or left turns of lanes, depending on the specific roadway layout.

In this case, being alert to potential changes in the road's structure will enhance safety. It’s important for drivers to recognize that such signs are crucial for route navigation and to adjust their speed and positioning accordingly. Thus, while option B suggests a specific rightward curve, the underlying concept is that a divided highway signifies the onset of different traffic routes governed by barriers or medians.

The other options address different scenarios that do not accurately reflect what a driver should anticipate when seeing a "divided highway begins" sign. For instance, indications of a winding road or a do not enter sign relate to other specific situations and do not pertain to the transition into a divided highway.