Amust provide enough information that an interested reader could locate an article themselves

The word you are looking for is Bibliography. Remember that a bibliography is  a list of sources, usually appearing at the end of a research paper, an article, a book, or a chapter in a book. The list documents sources used in the work and points out sources that might be useful for further research. every single entry helps the reader to know more about an especific information and for them to read the whole reference

Ithink it's a. but i could be wrong because it might be b. but it's not the other two