Final answer:
White lines on the pavement guide traffic and indicate safety measures. Broken white lines allow for lane changes, whereas solid white lines mark pavement edges and suggest staying in the lane.
Step-by-step explanation:
White lines on the pavement play a crucial role in road safety and traffic regulation. These lines, which are parallel to the flow of traffic, serve different purposes based on whether they are solid or broken. Broken white lines may be crossed by drivers when changing lanes, signaling that it is generally safe to do so if conducted with proper caution. Solid white lines, on the other hand, serve as markers for the edge of the pavement and also signify that it is safer to stay within your lane, as crossing such lines could expose you to potential hazards.
In some cases, solid white lines are used to indicate lanes that should not be crossed, such as in the case of a shoulder or a designated turn lane. In conclusion, the correct answer is D. All of the above statements are true regarding the function of white lines on the pavement.