What does it mean when a lane is marked with a dotted line?

Answer: C — You can change lanes when it is safe to do so

A lane marked with a dotted line indicates that you can change lanes when it is safe to do so. This type of line allows for flexibility, enabling drivers to move between lanes provided they check their mirrors and blind spots to ensure it's safe. The presence of the dotted line signifies that there are no restrictions on these lane changes, unlike solid lines which typically indicate that lane changes are not allowed. In contrast to the correct interpretation, options suggesting prohibited lane changes or designated vehicles do not apply because those would typically be marked with solid lines or additional signage. A closed lane would typically be indicated with a solid line and warning signs, indicating that it is not safe to enter or use that lane. Understanding this marking helps drivers navigate safely and confidently in various driving conditions.