Answer;
B. So the audience can remember that theme more easily.
Speakers place the most important theme at the end of a speech so the audience can remember that theme more easily
Explanation;
The theme of a speech is the heart of the speech, that is it carries the message of the speech.
The aim of any speaker is to pass the message to the audience, and by so doing convey a theme, evoke an emotion or elicit a response. It is therefore important to ensure the audience will remember the theme of speech more easily by including it at the end of the speech.