Which country, on December 1, 2009, pledged to voluntary reduce its carbon dioxide emissions per unit of GDP by 40-45 per cent of 2005 levels, by 2020?

Which country, on December 1, 2009, pledged to voluntary reduce its ca

1.	Which country, on December 1, 2009, pledged to voluntary reduce its carbon dioxide emissions per unit of GDP by 40-45 per cent of 2005 levels, by 2020?
A.	India
B.	Japan
C.	USA
D.	China
Answer» E.