During world war one, buying war bonds was a way for people to

War Bonds are a way for the government to borrow from their population to finance the increased military spending during wartime. Hence they are popular financial instruments during wartime, which tend to be correlated with inflationary periods due to increased spending.

the correct answer option is: weapons.

explanation:

tensions rose as the two opposing superpowers competed for 'weapons'.

referring to the cold war (1945-1991), the two superpowers, usa and ussr, experienced a phase of struggle and conflict with each other. these two superpowers considered each other as a threat to their survival and thus opted for policies to strengthen their positions.

the two superpowers never went to war with each other directly but competed for weapons to preserve their positions.