The Columbian Exchange lead to an increase in the demand for skilled labor in Europe, because D) an abundance of raw materials from the new world needed to be made into finished goods. Many raw materials and new products were brought over to Europe from the Americas which needed to be made into finished products.
The correct answer is:
President Woodrow Wilson.
The Clayton Antitrust Act is an amendment to the Sherman Antitrust Act of 1890, passed by the U.S. Congress in 1914, that centered on price discrimination, price fixing, and unfair business practices.
The Keating-Owen Act was signed into law in 1916 and attempted to address child labor.
The Zimmerman Telegram was a message from Germany to Mexico where Germany tried to make an alliance with Mexico in case the U.S joined the war. Germany said that they would let Mexico have their old territory back, which included Texas.
C or b i'm not all the way sure but i am sure it is one of them