According to the passage, during the Civil War the South no longer provided the North with ______.

A．The students of the Civil War usually concentrate on the economy.
B．The families of the Civil War axe extremely worried about their living.
C．The students of the Civil War usually concentrate on the battlefield.
D．The families of the Civil War are extremely worded about the government.

A．derived from a Japanese word, meaning a businessman with great wealth and power
B．an English translation of a Russian word, meaning a man of great consequence
C．borrowed from Portuguese, meaning an industrialist with a great man of money obtained illegally
D．rarely used now because of its derogatory meaning