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Poor management, outdated technology, competi-
tion form overseas, and steel's replacement to mate- rials like aluminum and fiber-reinforced plastics
have all been cited as causes for the decline of the
United States steel industry.
(A) steel's replacement to materials like
(B) the replacement of steel by such materials as
(C) the replacing of steel with materials of
(D) the replacing of steel by means of materials like
(E) to replace steel by materials such as