Answer: B. Imagination is more important than intellect.
Explanation: in literature a theme is an underlying message, what critical belief about life is the author trying to convey in the writing of a novel, play, short story or poem. This belief, or idea is usually universal and transcends cultural barriers. From the given options, the sentence that is most clearly describing a theme is option B: imagination is more important than intellect, because it is sending a message.