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:
The only factor that distinguishes different cylindrical map projections from one another is the scale used when spacing the parallel lines on the map. The downsides of cylindrical map projections are that they are severely distorted at the poles.
Answer:
How do people survive in Antarctica in the winter? Mainly by staying on the station. By not leaving at all during the permanent night, by not travelling for too far and by staying put in a tent or hut if caught out in a blizzard rather than trying to go back to the station.
Explanation: