Which of the following best explains the concept of the "topic" in an academic essay or article?

A. The conclusion reached
B. The argument presented
C. The general theme
D. The research summarised

C. The general theme

The "topic" in an academic essay or article refers to the main subject or idea that the author is writing about. It is the central focus around which the argument, research, and conclusions are built. Therefore, the general theme of the writing is the best explanation of the concept of the "topic" in an academic essay or article.