The answer would be an Oxymoron.
Assuming you meant explanatory text and not exclamation text, the answer would be brackets. For example, say your quotation is "She wrote the book." If you are quoting this directly in a paper, you want your audience to know who "she" is. So, you use brackets, and write the following: "[J.K. Rowling] wrote the book." Hope this helps.
Memoirs and autobiographies (option "C") are examples of nonfiction literature, since the writer reports on his / her real life events by making use of different literary techniques. Literary nonfiction, also known as creative nonfiction, employs literary elements, like character, setting and plot. The employment of literary styles and techniques in nonfiction narratives are intended to entertain the reader by creating factual narratives about people, places, and events of the real world.
The verb phrase is
show us the video
