The correct answer is C) deliberate word choice.
The other options of the question were A) repetition of words. C) personal testimonials. D) appeal to authority.
The technique that Johnson uses to evoke emotions in his audience is a deliberate word choice. In this technique, the author or the speaker carefully choices the kind of words it needs to transmit a particular, sentiment, meaning, or emotion is its speech. The speaker looks for the appropriate words to deliver them to a specific answer and produce the desired reaction.