Alexander's legacy includes Select one: a. the blending of Greek and Asian cultures. b. the idea of a single great empire of many peoples ruled by one king. c. his political conquests, although in some regions these did not last long. d. All these answers are correct.

I believe it is D

Explanation:

Because he succesfully did that

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.