6. Greenhouse gases (GHGs) are causing global warming, resulting in ________ sea levels, and climate change. Hence, the Conferences of the Parties to the UN Framework Convention on Climate Change have set up the mechanism of reducing Greenhouse gases emissions.
(A) arising
(B) raising
(C) rising
(D) descending

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統計： A(4), B(2), C(8), D(0), E(0) #1905619