Final answer:
When merging onto an interstate, the oncoming traffic on the interstate has the right-of-way, making it the driver's responsibility to yield and merge safely.
Step-by-step explanation:
When entering an interstate, traffic on the interstate has the right-of-way. It is the responsibility of the driver entering the interstate to yield to the oncoming traffic already on the freeway. This ensures smoother integration into the flow of traffic and enhances safety for all drivers. Traffic on the interstate cannot be counted on to create an opening, nor are they required to yield to the entering vehicle. Drivers merging onto the interstate must use accelerations lanes to match the speed of the mainline traffic before merging smoothly and safely.
Answer: A. has the right-of-way.