Which of the following possible explanations for why Canada has an emission reduction target under ...

Which of the following possible explanations for why Canada has an emission reduction target under the Kyoto Protocol, but China does not, is NOT true?
A) Even though Canadians are responsible "only for 2% of global emissions," they make up 1% of the global population.
B) Most of the excess CO2 currently in the atmosphere has been put there by industrialized countries such as Canada, not by developing countries such as China.
C) Industrialized countries have grown rich on the fossil fuel economy in the last two centuries, so they are in a better position to afford the costs necessary to cut the emissions than the developing countries.
D) Industrialized countries have better technology, so they are in a better position to cut their emissions.
E) Since industrialized countries are mostly responsible for the problem, they should lead by example.