What tone does the passage most clearly convey? Which phrase most clearly contributes to this tone? In what way is this tone most effective?

a tone of caution

None of them will help you

It emphasizes the danger of the plague

Explanation:

a tone of caution

None of them will help you

It emphasizes the danger of the plague

Explanation: other guy got the last one wrong

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.