Which of the following occurred after the Berlin Wall fell? OEurope remained divided among ideological lines.
O The European Union collapsed.
OAll European nations became members of NATO.
O Much of Europe formed a single economic market.

Much of Europe formed a single economic market

Explanation:

Nowadays Europe isn't very much divided among ideological lines. I don't believe there are any communist countries in Europe as the Soviet Union ended up collapsing, and along with that, their communism.

The European Union hasn't collapsed. Britain recently left the European Union (Brexit), so the EU still exists.

Not all European nations are part of NATO. Switzerland, for example, is a very neutral country and they are not part of NATO. Some of the Balkan countries didn't join as well.

Much of Europe has formed a single economic market. A majority of European countries use the euro, so a good portion of Europe had formed a single economic market.

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It should be C.

Explanation:

I took the test and C was right.