"Companies such as Canon, Nikon, and Sony make expensive camera lenses." This sentence illustrates the use of

What roles can the use of evidence play in the effectiveness of a persuasive presentation?

A. Increase credibility of the presenter B. Increase interest in the topic C. Stimulate the audience D. All of the above.

The Vitascope, in all essential respects, proved to be the prototype for the modern movie projector. ___

Indicate whether the statement is true or false