The polynesian islands vary widely and can be divided into: a. sea islands and land islands.
b. wet islands and dry islands.
d. islands with high elevations and islands with low elevations

The correct answer is D. The Polynesian Islands vary widely and can be divided into islands with high elevations and islands with low elevations.

Explanation:

Polynesia is the name given to a set of islands in the South Pacific Ocean.  Extended over a huge ocean surface, it has a combined area of 298,000 km² and 4.5 million inhabitants. Its larger islands have volcanic origin and high elevations, and the smaller ones have coralline origin with low elevations. Given that the entire territory of Polynesia lies between the tropics, it has a very hot and humid equatorial or tropical climate.

it is very hard for the climatologists to precisely predict how will the global temperatures be changing so there's lots of models, some of which differ significantly, this is due to multiple factors, and probably the most important is the human activity.

humans have been a key factor in climate change around the globe since the start of the industrial revolution, and in the past few decades the consequences are becoming more obvious. there's lots of emission of pollutants in the atmosphere as well as changing the environment on the surface itself, so it's really hard to predict how will that go in the future because there's some countries that are reducing the damage and are going towards green energy, while others are stubbornly continuing with pollution and damages to the environment.