The speaker can share more information

n a speech on environmental impact, the audience is encouraged to submit written questions that will be responded to and sent out after the talk with the powerpoint slides. Is this a good idea?
Group of answer choicesNo. It makes it look like the speaker is not confident enough to answer the questions.
Yes. The speaker can share more information if not interrupted by questions.
Yes. Since this is technical, it is important to be very precise in how questions are addressed.
No. It avoid audience participation, which allows the audience to clarify open issues.