To solve this question, the user needs to have a basic understanding of database management systems and the structure of a database.
The correct answer is:
C. one article from a magazine, journal or newspaper
Each record in a database of newspaper, journal or magazine articles represents a single article, not an entire publication or the author of the article. Therefore, option C is the correct answer.
Option A is incorrect because it suggests that each record represents a single magazine, journal or newspaper, which is not true.
Option B is also incorrect because it suggests that each record represents a single author, which is not true either.
Option D is incorrect because it includes options A and B, which are both incorrect.