<span>C. Plateau. i hope it helps</span>
Supervolcanoes are different from normal volcanoes. They aren't recognisable by a conical shape that you would imagine a volcano to be. These volcanoes form calderas which are huge craters in the ground after previous eruptions, which are so large that they are often only noticeable from the air above
You might be just stuck at the border. If you're on the train to Moscow, you'd be thrown out at the Polish-Belarusian border at Terespol. How you get back is your problem, just as when you are<span> allowed in.</span>