A literary theme is the moral of a story.
A literary unit is a stand alone theme in a text. Together the literary units will comprise the theme of an entire text (i.e. story, book)
yes!
AFRICA!!!
No.
The term you are looking for is "theme." Theme refers to the underlying message or main idea that the author is trying to convey through a literary work.
the moral behind a statement theme
Each work has only one theme
Argument is a brief summary of a plot/theme prefixed to a literary work.
censorship in mass media
Building Camaraderie and Sportsmanship through Literary and Sports
What a story or play is about; to be distinquished plot or theme.