What detail in the article shows that Antarctica can be dangerous?
A.
Many countries agreed to share Antarctica. No one owns it and no one can live there.
B.
It is the coldest place on Earth. The ice is thick, and the wind is strong.
C.
There are rules to keep Antarctica the way it is. Nothing can be taken home as a souvenir.
D.
She sees seals that died. Some of them have been there a long time.