Final answer:
The change in mood in a narrative is often showcased through word choice, sentence structure, and the use of literary devices such as imagery and details. The examples provided illustrate how different expressions can create a sense of panic, joy, or unease, thus influencing the reader's emotional response.
Step-by-step explanation:
The question pertains to the identification of word groups that signal a change in mood within a narrative. In literature, mood refers to the emotional atmosphere that a writer creates for the reader. The mood is established through various literary devices, such as imagery, details, and language. For example, the sentence structure of "I seized the bell-rope; dropped it, ashamed; seized it again; dropped it once more..." alongside the repetition of 'dropped' and 'seized' contributes to a frantic and frazzled mood in Twain's story. In contrast, the joyful tone in "The sound of their revelry rang throughout the The sun gleamed brightly on the parade, and colorful streamers floated through the air like dazzling rainbows" reflects a positive mood through the use of vivid details and cheerful imagery. Each scenario presented in the question represents how different word choices and narrative structures affect the reader's perception of the mood within a story.