Hello!
The correct answer is: None of the given options
Why?
There is a treaty (signed in 1959) that prevents the explotation of resources from the Antartica, in fact, even military operations are prohibited. On the opposite side, scientific researches are allowed among with eco-system preservation rules.
At the moment, the Antartica Treaty has been signed by 53 countries around the world, including the U.S. , Brazil, Argentina, Australia, Belgium, France and others.
Have a nice day!