Which phrase BEST explains how World War I affected the U. S. economy? A) consumer debt increased
B) land speculation was outlawed
C) protective tariffs were abandoned
D) agricultural production increased

A

Explanation:

none of the other answers  make sense

d

Explanation:

During World War I farmers increased production to meet the demands for food for the fighting troops. After the war, farmers were producing more than the American people could use and the price of farm goods dropped so low that many farmers couldn't make enough money to pay off their huge debts.