David decided to present his informative speech on "How to Perform the Heimlich Maneuver." David opened by recounting how he saved his younger brother's life, when he was choking on gum he had accidentally swallowed. Which strategy to maintain audience interest was David using?

The correct answer is that te strategy that David uses to maintain audience is the use of personal narrative.

Explanation:

Personal Narrative is the use of storytelling in the first person to talk about a personal experience or situation, this makes it more relatable to the reader which catches the readers attention.