Suppose the United States Imposes a Ban on Imported Steel

Suppose the United States imposes a ban on imported steel from China because the Chinese steel was made with factories that pollute the environment.If China complains to the WTO regarding the U.S.ban,the WTO will side with

A) China, because the pollution in China does not harm the United States directly.
B) China, because the WTO is in favor of industries that generate pollution.
C) the United States, because a country can determine what goods can and cannot enter its borders.
D) the United States, because U.S. factories have to comply with U.S. environmental standards.