The correct answer is A. An underlying message about life
Explanation:
In literature theme refers to the underlying message or the belief, idea or aspect of life the writer wants the reader to understand, this applies to any literary work such as novels, poems, short stories or plays, and it is usually a universal message, which means people from all the world can understand it. Most common themes are related to love, death, power, struggle between good and evil and heroism from which the author expresses a specific opinion or idea. In summary, the theme is a general idea or underlying message the story intends to convey and it is not related to the events or characters but to a lesson related to some aspect of life.