Question

What of the following revolutionized the steel industry?

A.
the Bessemer Process

B.
the switchboard

C.
the mail-order catalog

D.
the Bell Company

Answer 1

A). The Bessemer process

Answer 2

Option A, the Bessemer Process.

Step-by-step explanation:

Andrew Carnegie revolutionized the steel industry with the introduction of the Bessemer process in 1875. The Bessemer process was a way to mass-produce steel cheaply and quickly.

Hope this helps!

Have a great day and God bless! :)