B is the answer
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Answer is rent controls
And price control that limits the amount a property owner can charge for property. This prevents the price from being hiked from the predetermined percentage.
Communication Barriers
It becomes very difficult for the EU to communicate with all of it’s citizens because they all speak different language. This also impact the feeling of unity among it’s members. It makes it harder to bring people together.
Shared Wealth Is Not Always Good
Large and wealthy countries that are members of the European Union, like Germany, have to share their wealth with much smaller and poorer countries. This prevents any one country from becoming too powerful, which is a bad thing for countries that have the ability to become world leaders.