Which Is Least Accurate About Foreign Trade

Which is least accurate about foreign trade?

A) In the early 1900s, the most industrialized nations exported foodstuffs and raw materials to the least developed countries.
B) After the Civil War, rapid improvements in communications, like the first successful transatlantic cable, lowered the price of trade.
C) After the Civil War, rapid improvements in transportation, like the opening of the Suez Canal and developments of railroads, reduced the price of shipping.
D) In the late 1800s and early 1900s the network of international trade assumed many of its modern characteristics.