The correct answer is A. audience and message.
An author's purpose for writing a text is significantly influenced by two main factors: the audience (the intended readers of the text) and the message (the main idea or argument the author wants to convey).
Audience: The author must consider who they are writing for because different audiences may have varying interests, levels of understanding, and emotional responses. This shapes how the author presents their ideas, what examples they use, and the overall approach they take in their writing.
Message: The message is the core idea or lesson that the author aims to express. It drives the content of the writing and dictates the author's intentions, whether it be to inform, persuade, entertain, or express thoughts and feelings.
Together, the audience and the message define the author's purpose, guiding the choices the author makes in their writing. The other options (imagery and repetition, narrator and narrator's point of view, tone and word choice) are important elements of writing, but they do not directly combine to form an author's purpose as do audience and message.