Final answer:
Pacing is a narrative technique that uses dialogue and sentence lengths to create tension.
Step-by-step explanation:
The narrative technique that refers to the use of dialogue and sentence lengths to help create tension is called Pacing. Pacing refers to the speed at which a story is told, and it plays a crucial role in building tension and suspense. By using shorter sentences and quick exchanges of dialogue, authors can create a sense of urgency and keep the reader engaged.
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