The answer is A. Southern Europe has a large number of mountains, while northeastern Europe is mostly flat.
Explanation:
The map presents the geographical features of Europe, especially bodies of water, which are marked in blue and the elevations, which is mark by different colors on the map. The second feature shows the location and height of hills, mountains, and similar. Additionally, according to the conventions in the map higher elevations are shown in orange and yellow while low elevations are shown in green.
In this context, we can observe in the Northeast of Europe the color green predominates, and this indicates in this zone most of the territory is flat and there are no high mountains or similar. On the opposite, in the South East of Europe, there are higher elevations, which are shown by the colors orange and yellow on the map. Thus, the southern region has many mountains or elevated areas while the northeastern area has a flat territory (Option A).