The correct option is A China
Greenhouse
gasses generally traps the radiations of the earth which leads to
increase in the temperature of the earth and global warming. The
greenhouse gasses includes water vapor, carbon dioxide, methane,
nitrous oxide, and ozone. According to the latest data, the top emitters by 'Netherlands Environmental Assessment Agency' are China - 28.6%, USA - 16%, India - 5.8%, Russia - 5.4% and Japan - 3.7%.