As Thomas selects information for his presentation, his goal is source credibility. Which of the following sources is the least credible?

Describe some steps speakers can take to help listeners form a good impression of their ethos.

What will be an ideal response?

Communicating in Groups recommends that regardless of how you learned to speak in your family and neighborhood, you will benefit from conforming to the vocabulary and grammatical rules of standard U.S. English in mainstream business and educational communities.

Answer the following statement true (T) or false (F)