I assume that the question refers to the political affiliation of the Islands (They are Islands in the Mariana Trench, in the Pacific Ocean, south of Japan) - they are politically linked to the US - the correct answer is a). For example the Mariana islands have a commonwealth status within the US.
1:the malanesian islands ,which include the papua New guinea
Which is closer to australia
C. ice melting...
hope this helps!!
The answer is a. //too short