Final answer:
The correct interpretation of road signs with arrows mounted above the road is to follow the indicated lanes to follow a specific highway route for safety and proper traffic flow.
Step-by-step explanation:
The question relates to interpreting road signs and understanding their directives for lane usage. When encountering signs mounted above the road with arrows, the correct action is to follow the indicated lanes to follow a specific highway route, per option D. These signs serve as a guide for drivers to choose the correct lane based on their intended destination, ensuring both safety and smooth traffic flow.
Ignoring these signs could lead to traffic violations or, worse, accidents. It's important to note that while road signs can be standardized, drivers must be vigilant and adhere to all road signals to maintain order and safety on the highways. Remember, each arrow indicates the precise lane to use for a given route or direction.