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.
Regarding race, religion, creed, and gender, I believe that the education system leaves no hurdles for the formerly discouraged sects of society. However, school districts that encapsulate both high and low wealth areas do little to provide proper educational assistance and opportunity to children of all surrounding home lives. Hope this helped!
Answer:
the answer is background knowledge.
Explanation:
A teacher takes her class to the past in a time machine to investigate their roots.