Which statement is true about theme in short stories?

a) the theme of a work may be expressed in a word or two, such as “beauty” or “bad weather.”

b) a theme is the music an author would choose if a movie were to be made from the story.

c) theme is the place where the story is set, or where the story takes place.

d) a theme is the central message of a story and usually shows some insight into life.