Answer :
Final answer:
The divided highway begins sign is indicated by yellow centerline markings, which inform drivers to stay on the right side of the median or barrier that divides opposing lanes of traffic.
Explanation:
The question is asking which road sign indicates that a divided highway begins and instructs drivers to keep to the right. The correct answer is c) Yellow centerline markings. These road signs, along with accompanying signage, typically signal the approach to a divided highway. Drivers should be prepared to see a physical barrier or median separating the lanes of traffic and should stay to the right-hand side of their respective lanes. White chevron road markings, blue information signs, and green guide signs serve different purposes on the road.