Which of the Following Is True About the United States

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

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