Read the following excerpt from a speech given by a national leader: Ten years ago, we watched Sinesthesia, a new republic, fall
victim to the seductive power of fascism.
Five years ago, we watched as the nation suspended
voting rights.
Today, we hear that the national assembly has been
dismantled.
We are a democracy, and we will defend our fellow
freedom-lovers around the world. The costs of ignoring
totalitarianism are simply too high.
Which sentence most accurately explains why the speaker's use of parallel
structure is effective in this passage?