Why Have Countries of Oceania Been Major Supporters of the Conventions

Why have countries of Oceania been major supporters of the conventions to limit the production of greenhouse gases?

A) They are the largest producers of these gases and want to serve as an example for the rest of the world on the issue of pollution control.
B) The Pacific states are the largest producers of wind and solar energy technology, which they can sell to nations that are reducing their carbon emissions and turning to alternative fuel sources.
C) The Pacific region has the lowest air quality.
D) Greenhouse gas emissions are directly related to global temperature increase and as sea levels rise, many of the Pacific islands will be drowned if global temperatures continue to increase.
E) Pacific Islanders are staunch environmentalists, and desire a healthy world environment for everyone.