Final answer:
The line using a hyphen (dash) correctly to create a natural pause is 'I-uh-am confused. Weren't we leaving at noon?' by Carla, illustrating how dashes can indicate hesitation or emphasis and add to the conversational tone of dialogue.
Step-by-step explanation:
The appropriate use of a hyphen (dash) to create a natural pause in a sentence can be found in the line "I-uh-am confused. Weren't we leaving at noon?" asked Carla. This line employs a hyphen to indicate a moment of hesitation or a break in the speaker's thoughts, which follows the guidelines for using dashes properly. The dash creates an emphasis and adds a conversational tone, simulating how people often speak in real life.
When using dashes, we can emphasize or set off a phrase. For example, 'The roof of that car was covered in Astroturf—a strange sight!' This illustrates how a dash is used to separate and draw attention to the explanatory phrase. Additionally, in 'Quentin's father gave him a golden pocket watch, which was a priceless family heirloom.' the use of a comma instead of a dash implies less emphasis on the description of the pocket watch.
Dashes are often more impactful than commas or parentheses because they can add dramatic pause or give special importance to part of a sentence. In literature, they may be used to reflect shifts in tone or thought, such as in the representation of speech or internal thoughts in a narrative.