why is there no minnig activity on antarctica?

A)***the potential profity is outweighed by the harsh conditions there.
B)the continents coal and oil reserves were exploited and now have been exhausted
C)minning there is prohibited by international agreement
D)there is no evidence that the continent holds mineral resources

http://www.google.com/search?rlz=1C1GGLS_en___US341&sourceid=chrome&ie=UTF-8&q=antarctica+and+mining