Select the Word or Phrase That Best Matches the Definition

Select the word or phrase that best matches the definition or example.
-Russia's great frontier region,a vast territory of what is now central and eastern Russia,most of it unsuitable for agriculture but rich in mineral resources and fur-bearing animals.

A) Cortés
B) Doña Marina
C) the Great Dying
D) Little Ice Age and General Crisis
E) Columbian exchange
F) peninsulares
G) mestizo
H) mulattoes
I) plantation complex
J) settler colonies
K) Siberia
L) yasak
M) Qing dynasty empire
N) Mughal Empire
O) Akbar
P) Aurangzeb
Q) Ottoman Empire
R) Constantinople
S) the devshirme