Answer:
It does depend on what the answers you can choose from are, but...
Highlands are areas of higher mountainous land.
I bealive food, and carbon dioxide
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.
Answer:
c
shape like a straight line
