Questions: In the audience-centered approach to speaking, the speaker should only speak to an audience of experts, modify their message to suit the audience, ensure the audience is listening, let the audience decide what the speech topic is.

The answer is modify their message to suit the audience.

This option is not correct because an audience-centered approach involves tailoring the message to the specific audience, which can include non-experts. Limiting the audience to only experts does not align with the audience-centered approach.

This is the correct option. An audience-centered approach emphasizes understanding the audience's needs, interests, and level of understanding, and then adapting the message accordingly to ensure effective communication.

While ensuring the audience is engaged is important, it is not the primary focus of the audience-centered approach. The approach is more about adapting the message to the audience rather than just ensuring they are listening.

This option is not correct because, while audience input can be valuable, the speaker typically selects the topic based on the audience's interests and needs, rather than letting the audience decide entirely.