What graphic organizer might be helpful in understanding this passage?

Unfortunately, the United States has been lagging behind Europe in making alternative transportation an attractive option. Cities and suburbs are spread out, bike parking is far less common, and most bike paths are recreational paths that go along rivers or through parks, not functional paths that take riders to businesses and workplaces. The one area in which the U.S. outstrips Europe’s transportation efforts is in the number of buses and trains that allow riders to bring bikes aboard.
There is one exception: Portland, Oregon. Portland is a model bike city in the U.S., putting into practice many of the same ideas that Denmark, Germany, and the Netherlands have used. And they are succeeding in Portland—in a big way. From 1991 to 2008, Portland managed to more than triple the number of bike trips taken in the city.
For the United States to get serious about alternative transportation and solving the transportation crisis, many more cities will need to adopt the strategies that have been so successful in Portland and Europe. City by city, we can make a huge difference. Will your city be next? Think about how you, too, can get involved and be part of something big
a.
cause and effect chart explaining how the US is behind aside from Portland
c.
questioning structure followed by the answers
b.
a compare /contrast organizer between the United States and Europe’s transportation problem solving ideas
d.
none of these