The best option from the list would be that "A. <span>The U.S. purchased the Florida Territory from Spain and seven states were admitted into the union, since this was one of the few times that the US purchased land instead of taking it through force. </span>
Answer:

Government corruption and political instability. The political rot also extended to the Roman Senate, which failed to temper the excesses of the emperors due to its own widespread corruption and incompetence. As the situation worsened, civic pride waned and many Roman citizens lost trust in their leadership.