Question

however, they are not likely to drop their ambitions simply because they witness the spectacle of the united states and russia engaging in substantive arms reduction. in this sentence, spectacle means: a body of rules established as valid and fundamental something serving as a sign of something else a list of candidates nominated by a political party something or someone seen, especially a notable sight

Explanation:

In the context of the sentence, "spectacle" refers to the sight of the United States and Russia engaging in arms - reduction. It implies a notable sight. The other options do not fit the context.

Answer:

D. something or someone seen, especially a notable sight