The correct option is:
A. Andrew Carnegie.
Andrew Carnegie (1835 - 1919) was a Scottish-American industrialist, business magnate, and philanthropist. He drove the development of the American steel industry in the late 19th century. By the 1860s he held investments in railroads, sleeping cars, bridges, and oil derricks. He built Pittsburgh's Carnegie Steel Company, and after selling it, he surpassed John D. Rockefeller as the richest American for a few years.
