Answer: B (The Pentagon was worried that the shattered remains of the Soviet Union might be rebuilt before the United States)
Step-by-step explanation: Option A is too wide and unspecific; option C gives a more detailed picture of the situation, but it does so through a metaphor that becomes meaningless without essential contextual information; option D, while free from vagueness, is dependent on the information provided by option B; option B actually reveals the most important geopolitical detail of the moment and positions the reader in the historical moment.