Which of the following is true of the antarctic treaty system?
a. members came from the antarctic agreement.
b. it allows limited weapons testing of the continent.
c. it limits restrictions of environmental controls.
d. it encourages scientific research.

The Antarctic Treaty System D) encourages scientific research. It does not allow weapons to be tested, unless they are for some scientific purpose and for a peaceful purpose. The Antarctic Treaty System details how countries should have international relations with the only continent without a native human population and The Antarctic Treaty Secretariat is headquartered in Buenos Aires, Argentina.