Explain how public speaking uses skills identified in other types of communication

As an advocate for a proposition of fact, you may use presumption as a way of

identifying common practices and experiences that relate to your subject. What other use might you make of presumption? (a) Presumption may be used as a method for analyzing your audience to discover what sources of information and what kinds of reasoning the audience will find most credible for arguments on this subject. (b) Presumption may be used to discover the issues and their supporting arguments that will encourage the audience to accept that the primary inference for your proposition of fact is probably true. (c) Presumption may be used to locate an immediate cause that signifies something important about the topic. (d) Presumption may be used to determine what objections the opposition may raise so that you can develop preemptive arguments.

Who invented the printing press in the 1440s?

A. Thomas Edison B. Eli Whitney C. Alexander Graham Bell D. Johannes Gutenberg