_____ are useful presentation aids for showing differences over time or for comparing different amounts or sizes

In a symposium

A) speakers choose topics and then identify ways that those topics are related. B) group members follow a Lincoln-Douglas debate format. C) speeches are usually given from a manuscript to assure consistency among speakers. D) most group interaction happens in the early stages of developing the presentation.

Explain the steps you should take to prepare for a question-and-answer session.

What will be an ideal response?