The present international treaty regarding Antarctica:

Options:

A. Divides the land among the twelve nations claiming rights to it.

B. Allocates petroleum and mineral rights among the twelve original treaty signers and eleven other nations.

C. Prohibits radioactive-waste disposal, weapons testing, and military related activities on the continent.

D. All of the choices are correct.

C. Prohibits radioactive-waste disposal, weapons testing, and military related activities on the continent

Explanation:

The Antarctica treaty which was signed in 1959 and still in usage stipulates all military activities, radioactive testing and disposal, weapon testing activities should be prohibited. The treaty is only modifiable every 30 years.

Presently, mineral exploration are not allowed.