C) Have you ever EATEN a frozen banana?
eaten contains a past participle.
Hope this helped.
Answer: D. McCloud, Alex. How to Teach Your Kids. Eagle Press, 2004.
Explanation: In MLA citation or style of referencing, the authors last name or surname comes first, followed by the first name, then title of the book, journal or source, name of the publisher/s and year or date of publication.
For this reason..
Usually they use this phrase to explain why something had happened in this case it could be referred to the solution