Which of the following groups of countries has almost 50% share in global emission of carbon every year?

Which of the following groups of countries has almost 50% share in glo

1.	Which of the following groups of countries has almost 50% share in global emission of carbon every year?
A.	US, China, India, South Africa
B.	India, China, Russia, Britain
C.	South Africa, Nepal, Myanmar
D.	Us, Russia, China & India
Answer» E.