The rhetorical impact of President Reagan addressing Gorbachev in his speech is: C. It strengthens his persuasiveness because President Reagan demands that Gorbachev take action instead of just mentioning him in a less direct way.
Rhetorics refers to the technique employed in convincing people about something. In President Reagan's speech, we find that he directly mentioned Mr. Gorbachev's name twice while urging him to open the gate.
This direct reference to Gorbachev strengthens the speech because the President did not mince words in his call to action.
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