Which of the Following Is True of Oral Reports

Which of the following is true of oral reports?

A) Oral reports always take the form of highly formal presentations.
B) An oral report refers to a list of topics to be discussed at a meeting.
C) The more informal oral reports are similar to routine conversations.
D) Oral reports are always internal; they do not have external audiences.
E) The ability to give effective oral reports is not critical in business since most reports are written.