Although Many Nations Signed and Ratified the Paris Climate Agreement

Although many nations signed and ratified the Paris Climate Agreement, an international accord designed to reduce the level of emissions and other pollutants around the world, the promise of cooperation on this issue was stalled when

A) Russia demanded compensation for its industry.
B) Japan refused to sign the accord.
C) the United States, the world's second leading polluter, withdrew from the agreement.
D) African countries demanded concessions in recognition of their weaker economies.