The answer is b EU created a free trade agreement
If you could dig a tunnel right through the Earth you could theoretically free-fall to the centre of our planet in just eighteen minutes. You can’t, of course: such a tunnel would have to tolerate temperatures as high as the surface of the Sun and pressures three and a half million times greater than those at the Earth’s surface.
In regards to the given question, there are no options given to choose from. I am answering this question based on my knowledge and hope that it helps you. Middle-latitude cyclones are fueled by air high up in the atmosphere. These cyclones are also known by the name of frontal cyclones and they are very large cyclonic storms that have a diameter of about 2000 kilometers.
Its of course vatican city also by area and population