The least likely statement to be an appropriate theme for a work of literature is "A boy went to school". While this statement describes an event, it does not provide a profound insight or universal message that is commonly found in literary themes. Themes in literature often explore deeper human experiences, emotions, or reflections on life and society.
On the other hand, statement B, "you can get what want through hard and perseverance", presents a more nuanced message about determination and the potential for achieving one's goals. This aligns more closely with the purpose of themes in literature, which often convey thought-provoking ideas or convey universal truths about the human condition.