The correct answer is - C. Central Siberian Plateau.
The Central Siberian Plateau is located roughly in the middle of the Asian part of Russia, or rather in the middle of Siberia. This region is enormous, occupying a territory of around 3.5 million square km, which makes it much larger than most of the countries in the world.
Most of the Central Siberian Plateau is dominated by plateau, hills, and mountains, with the elevation varying significantly form one place to another. The borders of this region are the Lena River on the east, and the Yenisei River on the west.
Most of this region is covered with the taiga, with its northern parts being part of the tundra, and for most of the year everything is frozen.
