Question

Ethan is giving a highly technical presentation on biomedical engineering involving several working models, computerized graphs, and video clips to a small group of doctors, scientists, and engineers. Which two characteristics of public speaking should he be most concerned with during his preparation?

Answer 1

Channel and Message.

Step-by-step explanation:

I'm assuming the answer choices you'v e been given are:

a. delivery and audience

b. noise and delivery

c. channel and message

d. none of the above

And the most correct here is channel and message. He must speak with proper technical terms and factual information (message) so that he can convey his message properly to his audience (channel)

Hope this helps!