What Was the Result of Andrew Carnegie's Sale of Carnegie

What was the result of Andrew Carnegie's sale of Carnegie Steel?

A) J. P. Morgan combined it with other steel companies into the U.S. Steel Corporation.
B) It led to the formation of the first American trust.
C) It inspired John D. Rockefeller to sell his Standard Oil Company.
D) It led to the building of the Brooklyn Bridge, the largest steel structure in the world.
E) Charles Schwab bought it and combined it with National Steel to form the largest steel company in the United States.