Which of these geographical factors is MOST LIKELY the biggest hindrance on Russia's economy?

Apermafrost over much of Siberia

Eliminate

BRussia's proximity to the Bering Sea
Clarge deposits of oil and natural gas
DRussia being the largest country in the world

Verified Answer :

Permafrost over much of Siberia is one of the biggest hindrances on Russia's economy. The land in Siberia cannot be used for agriculture, because the climate is too cold. The climate also makes it difficult to develop other industries in this area. Therefore, though Russia is the largest country in the world, most of its land mass cannot be used for economic development.