What is the difference between a primary and a secondary source? A. A primary source records an event. A secondary source examines the primary source. B. A primary source is a person. A secondary source is a book, magazine, or newspaper. C. A primary source is on paper. A secondary source is a picture or recording O D. A primary source is about a past event. A secondary source is about current events. SUD​

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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.

in 1862, president lincoln's emancipation proclamation opened the door for african americans to enlist in the union army. although many had wanted to join the war effort earlier, they were prohibited from enlisting by a federal law dating back to 1792.

explanation: