The businessman who controlled over 90% of the oil production in america was . a: george pullman.. b: andrew carnegie.. c: john d. rockefeller. d: cornelius vanderbilt.

the answer is hope this you.

according to the quotation from booker t. washington's 1895 atlanta compromise speech.

in the great leap from slavery to freedom . . the masses of us are to live by the production of our hands . . we shall prosper . . as we learn to dignify and glorify common labor.

washington believed that  hard work had its own kind of dignity.

explanation:

mark brainliest and have a great day!