Final answer:
Cicero emphasizes the importance of delivery and style in oratory in De Oratore.
Step-by-step explanation:
In De Oratore, Cicero emphasizes the importance of both delivery and style in oratory. He believes that in order for a speech to be effective, the orator must deliver it with proper poise and control, using gestures and movements that enhance the impact of the speech. Cicero also emphasizes the need for correct and appropriate language, free from any faults or accents, in order to engage and persuade the audience.