The one impact of the Iranian Revolution on the United States was that the military spending's increased.
Answer: Option D
Explanation:
Before the Iranian Revolution took place, the monarch of Iran Mohammad Reza Pahlavi was on good terms with the US President on the economic and military fronts.
After his rule was overthrown by the public, the quality of relations between the two countries took a dip. This eventually resulted in increased military spending by the US in order to prepare itself for any possible threat.
