Amemorized speech gives you the highest degree of flexibility, allowing you the freedom to interact with and respond to your audience.
t.
f.

The correct answer is "false"

Explanation:

If you memorize a speech and are about to deliver it before an audience, it will be difficult for you to answer questions and allow debate since you only know what you memorized. Therefore, paraphasing ideas, arguing, defending or just adding noew information will not be possible.

The best way to deliver a speech is to have an outline of the main topics to cover so that you can develop ideas in a clear  and cohesive way. This will allow you to get feedback from the audience and to make your speech more interactive and participative.

b is the answer for this question.