Siberia, a part of northern Russia, is one of the coldest places on Earth. Despite its frigid climate, over a quarter of the Russian population lives in this region.
Which reason best explains this fact?
A.
Siberia has inexpensive real estate and rich farmland.
B.
Siberia has few sources of air and water pollution.
C.
Siberia is the home to a prominent international university.
D.
Siberia is rich in natural resources such as oil and coal.