Which two ways that countries used economic polices to control the cost of world war i

Two ways that countries used economic policies to control the cost of World War I are:-

•They set prices on goods and materials needed for the war effort.

•They used "buy now, pay later" trait. They would buy something but not pay till later on.

Read more on -

the correct answer would be a. i think tara will practice for her test because she realizes her mistake

hope i .

could i get brainliest.