14. what mobile - specific feature can help increase audience interaction on instagram stories?

Brief Explanations:

Instagram Stories has features like polls, questions, and stickers which prompt audience participation. Polls allow followers to vote, questions let them respond directly, and stickers add an engaging element. These features encourage interaction as they make the audience an active part of the content - creation process.

Answer:

Polls, questions, and stickers (any of these mobile - specific features on Instagram Stories can increase audience interaction).