Answer:
A. oral footnotes
Explanation:
Oral footnotes -
In a speech , some kind of internal references which lead to the main source of the subject or topic , is referred to as the oral footnotes.
Oral footnotes need to be included in the speech , when the information is taken from any external source.
But information need not be plagiarized .
Hence, from the given information of the question,
The correct option is A. oral footnotes .
