What do double yellow lines signify?

Answer: A — No passing allowed in either direction

Double yellow lines are a clear indication that no passing is allowed in either direction. This marking is used to indicate that the road is divided and that it is unsafe to cross these lines for overtaking another vehicle. The purpose of this rule is to enhance safety, particularly in areas where visibility is limited or where maneuvers could lead to head-on collisions. It is crucial for drivers to observe this rule to prevent accidents, as crossing double yellow lines is prohibited, regardless of the circumstances on the road. In contrast, the other options imply conditions where passing might be permissible, which is not the case with double yellow lines. Understanding this traffic rule is essential for safe driving practices.