The correct option is A True
Imagery, in a literary text, is an author's use of vivid and descriptive language to add depth to their work. It appeals to human senses to deepen the reader's understanding of the work. In the given sentence, words like "dark" and "dim" are an example of imagery where it appeals to our sense of visual perception: it creates visual images of darkness for us. So the given statement is true. A is the answer.