 MOSCOW (Reuters) - At least one Russian ministry has signed  letters agreeing to Moscow's approval of the Kyoto Protocol, a  spokesman said Thursday, in what could be a final step in the  lengthy tussle to bring the global pact into force.
Q: Which is the best summary of this article?
Choose your answer from:
[I] World.
[II] Sports.
[III] Business.
[IV] Science/Tech.
I think the answer is
[I]