It's kinda hard to explain but I found a reliable website
http://www.history.com/topics/mcculloch-v-maryland
Hector is the answer.
hope it helps!
His steel company dominated the U.S. steel market because it made good steel at low expenses. That was possible because he used high-quality equipment and gave workers low wages. He helped to make U.S steel some of the best in the world.
The answer is B) cultural diversity
