Answer:
The following help to increase the credibility of the speaker and reduce the negative impact on the audience depending on what kind of listeners they are.
- Citing one's sources during a speech: A content-oriented audience will be interested in the authenticity of the speaker's presentation. Credible sources help to up the reputation of the speaker. For example, citing an unpopular blog versus citing world bank statistics.
- Stating facts and speaking about why it is so (that is, being uneconomical and accurate with the information): It is important not to exaggerate ones facts.
- getting to the point as quickly as possible: This is important to Time-oriented audience.
Explanation:
answer: b When you're listing things you gotta use commas
I think the answer is “Working together, America has done well”
