When you consult Wikipedia to find the definition of a concept for your research literature review,this is an example of the Internet working as a

A) document cross-referencing database.
B) document repository.
C) document delivery service.
D) document publisher.

Document Cross-referencing

The practice of referring to other documents within a document to provide additional information or to validate points made.

Document Repository

A digital or physical space where documents are stored and managed for easy retrieval.

Document Delivery

The process of supplying documents, such as journal articles or reports, to users, often via electronic means.