Why did the united states use rationing during world war ii?

The United States used rationing during World War II to prevent shortages. Certain goods like food, gas or even other materials like metal for military purposes.

In order to avoid economic shortages or starvation, Americans were given rationing books with removable stamps. When they went to the groceries, a person could only buy rationed goods - like canned goods, oil, sugar or meat - if he or she also presented the corresponding ration stamp.

i beleive a. is the only possible answer

for starters, there is the structural trend of rising primary government expenditure as a share of gdp, which reached 36% in 2014, up from 22% in 1991. this increase reflected a political desire to address the poverty and inequality that had gone unaddressed during previous decades. to support the increase, brazil’s government increased taxes on consumption and promoted progress toward labor-market formalization. nonetheless, public investment, particularly in infrastructure, took a hit. in fact, with the exception of the 2005-2008 period, total investment as a share of gdp has remained below 20% since 1991.