The correct answer is B) War Industry Board.
The other options of the question were A) Selective Service Act. C) Council of National Defense. D) Committee of Public Information.
The responsible for coordinating the economy during World War 1 was the War Industry Board.
When the United States decided to enter World Wr 1 on April 6, 1917, the government that it meant a time of sacrifices for the nation and to invest a lot of money on war supplies to ben sent to the war front. That is why the federal government created the War Industry Board on July 28, 1917. The agency was in charge of purchasing the supplies needed by the Navy and the Army.