The correct answer is D) the rationing of materials to support the war effort.
If you were a US civilian living during world war ll, the government action that would have influenced your everyday life most is the rationing of materials to support the war effort.
During World War II, the United States government asked its citizens to make some sacrifices to help the war effort. The government had to send food and supplies to the soldiers at the war front that is why citizens had to help with the rationing of materials to support the war effort.
One of the things that the government asked the American people to do is to have a "Victory Garden," which was a backyard garden where people could grow crops.