Tess, a PR professional, was asked to conduct a training session for the interns at her organization. When she began the presentation, the audience was very active

After a while, Tess started to use words and phrases that were commonly used in the PR industry. The audience lost interest in her presentation because they could not understand what she was trying to say. What did Tess do to make the audience lose interest?
a. She did not use jargon carefully.
b. She did not use concrete messages.
c. She did not use precise words.
d. She did not use concise phrases.

A