As discussed in Chapter 6, we do not just find some statistics and write them into our speech. We need also to consider how exactly to use statistics, so that they support, not hinder, understanding. For this purpose, we can:
选项：

A:Round off complicated statistics, so that your audience have a clearer sense of how much it is. ;
B:Use statistics from reliable sources. ;
C:Use visual aids or body language to help audience understand those abstract numbers.;
D:Explain the statistics, especially by making the statistics mean something for the audience.