问题：
[单选题]We had better write an outline before we write the script of the speech. The reasons are all of the following except_______________. ()
A it allows you to see the scope and content of the speech at a glance.
B it allows you to judge whether each part of the speech is fully developed.
C it allows you to see whether you have adequate supporting materials for each of your main points.
D it allows you to make a wise decision about the style you use to deliver the speech.
