An element to be considered when bringing a speech or a presentation to a close is:

A) the inclusion of a summary of the keys points developed.
B) the inclusion of a statement that clearly defines the topic.
C) the inclusion of statements that build up the case.
D) the inclusion of an attention-gaining statement.
E) the inclusion of a human-interest story.

Including a summary of the key points helps to reinforce the main ideas and ensure that the audience remembers them. It also provides closure and reminds the audience of the speaker's main message. The other options listed may also be useful in certain situations, but summarizing the key points is the most important element to consider when bringing a speech or presentation to a close.