Answer:
B. keep an eye on your blind spots and watch for motorcycles
Step-by-step explanation:
In the cities where there a lot of vehicles, it is difficult to drive as you are surrounded with other cars, trucks, bikes and motorcycles which is really dangerous and everyday there are a lot of accidents. Because of that, you need to pay a lot of attention as motorcycles tend to go close to the cars and sometimes the blind spots don't allow you to see them. So, when you are going to make a move you need to make sure that you don't have a motorcycle close to avoid having an accident. According to this, because of the density of vehicles in urban areas, you should keep an eye on your blind spots and watch for motorcycles.