Answer:
a. Author(s)' last name(s), date of publication, and page or paragraph number
Explanation:
When quoting material, you have to incorporate the information mentioned above in that order and separate it by a comma, for example:
(Roberts, Adams, & Johnson, 2010, p. 50)
In case there is no page number, you can mention the number of the paragraph in which the information was originally presented.
The language was powerful durning the wartime speech because it they could of use secret plans . For example if they wanted to throw a bomb somewhere they could of told them in their own language so they have a better shot in beating the other team .
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