B. In a speech, the theme is also used as an organizational tool.
Explanation:
A theme in a speech can serve the purpose of unifying the various points that is available in the speech.
A theme in a written work is the subject that is being talked about in the written work which could be prose, poetry, etc.
<u>However, the major difference between a them in a speech and a written work is that the theme of a written work while unifying the various ideas serves as an organizational tool.</u>
the answer is Abraham Lincoln issued the Emancipation Proclamation in 1863, which states that “all persons held as slaves within any State or designated part of a State shall be then, thenceforward, and forever free."
