Which of the Following Is Correct About the United States

Which of the following is correct about the United States and the reduction of greenhouse gas emissions?

A) The U.S.was one of the first signers of the Kyoto Protocol.
B) The U.S.met its target to reduce greenhouse gas emissions by 7% in 2012.
C) The U.S.Senate in 2003 approved a bill to curb emissions of CO₂ and other greenhouse gases.
D) The U.S.leads the world in its commitment to reduce greenhouse gas emissions and to slow global warming.
E) None of these statements is correct.