Answer:
The correct answer is Yes, I did find some information in a conference proceeding from 2 years ago.
Explanation:
Normally, a grey literature is one that is composed of conference proceeding, technical reports, thesis and dissertations, and unpublished studies. Usually they are usually not published, not indexed and cannot be found in major databases. In this light, the response of the student researcher shows that he or she has an understanding of what this type of literature is.
