Question

when preparing a speech, how should the audience shape your research?
find sources that will engage your audience.
focus on sources you understand best.
limit research to sources familiar to your audience.

Explanation:

When preparing a speech, the goal is to connect with the audience. Engaging sources are key as they capture and hold the audience's attention. Focusing on self - understood sources may not align with audience needs, and limiting to only familiar sources can be too restrictive. Engaging sources can introduce new and interesting information while still being accessible.

Answer:

Find sources that will engage your audience.