Answer:
1. Roadways in cities all over the world are crowded. With urban expansion, the number of drivers in any one location is sometimes staggering. Aside from the obvious annoyances of traffic jams, longer commutes and wasted gasoline, there is one larger issue that becomes paramount on crowded highways: traffic accidents. Research shows that the number one cause of all traffic collision is driver error. Therefore, it makes sense that the use of driverless cars will be a welcome change
Explanation:
The above answer is actually the best that supports the inference that driverless cars will be most useful and in highly populated areas.
This particular option reveals and relates that the change will be welcomed. This is because since the cause of traffic collisions mostly take place in crowded areas which is caused by drivers' error, the need for driverless cars is paramount. Driverless cars will help eliminate those errors.
Answer:
read the surrounding words and sentences to understand the meaning
