Which of the following statements about using supporting materials in your speeches is not true?

a.
each piece of support should be clearly relevant to the point it is used to support.
b.
each piece of support needs to be developed to the point that audience members can both understand the item of support and see how the item backs up the point it is used to support.
c.
each piece of supporting material should meet the demands that the audience and the occasion place on the kind of material that is likely to be received favorably.
d.
the presentation should rely excessively on one type of support (such as examples).

The untrue statement is indeed letter D.

D. The presentation should rely excessively on one type of support (such as examples).

Explanation:

A presentation should NOT rely excessively on one type of support, but should have a variety of materials. Using only one type risks making the presentation flat or boring, especially because the audience is constituted of different people who have different ways of taking information in. For some, examples and anecdotes are good enough, while for others statistics and graphs are indispensable. Some examples of supporting materials are: personal experience, hypothetical examples, books, scientific articles, case studies, statistics etc.

they both lost a woman they loved named lenore

they believed they interracted with a talking raven

they became orphaned at a young age.