Answer :
When the creator of the information has been clearly stated, this is referred to as Authority, hence the best choice is; a) authority.
Completely owning a piece of writing makes you an authority. When one chooses to cite an authority in their piece of writing, it means that they own the ideas in the piece of writing but there are known statements, writings, statutes, laws, or parts of historical speeches which they clearly refer to and consequently quote in their piece of writing.
This type of reference has different procedures according to the type of reference being done. The owner of the reference is the authority while the reference is referred to as a citation of authority.
when writing, this should be clearly and correctly done to support what you are writing about.
learn more about authority here; https://brainly.com/question/2073072
#SPJ4