Answer:
Step-by-step explanation:
E. Paralanguage has consistently been demonstrated in research to have the greatest impact on whether an audience will perceive a speaker as being competent. Paralanguage refers to the non-verbal aspects of speech, such as tone of voice, pitch, and rhythm, which can convey emotion and meaning. Effective use of paralanguage can help a speaker convey confidence, credibility, and authority, which are important factors in being perceived as competent.