The correct answer is C) both can be found in the dictionary.
Pronunciation and enunciation have all of the following in common except both can be found in the dictionary, regarding the article "Voice: Pronunciation and Enunciation."
What they have in common is that both involve how you use words, both are important to successful communication and both can impact how the audience sees you.
The tone of your voice reflects your personality and the confidence you have in your arguments. The voice of the speaker is an important element of the speech. The audience pays more attention to the way you speak than the content or the topic itself. So yes, pronunciation and enunciation are key components of the way you convey your message.