Answer:
b. western Europe
Step-by-step explanation:
Think about countries like Spain, France, England/UK, Germany and Italy.
They all have advanced communications (most of those countries have their own satellites in orbit, thanks to the European Space Agency) and transportation (France for example has a high-speed train) systems.
That's largely due to the different economic systems Eastern and Western Europe had for about 50 years due to the consequences of World War II, and the implementation of the communist block.