Respuesta :
you should first determine the purpose of your speech.
you cannot select a topic without knowing the main purpose.
Answer:
Determine the purpose of your speech.
Explanation:
To firstly prepare a speech you should select what you´re going to talk about, what you want the audience to feel about it and how you are going to transmit the message.
Once you determine the purpose of your speech you must gather information to support your posture and with the information, you have to select an appropriate topic. Finally before delivered it to an audience you must practice to be familiar with the topics and the organization of the speech.
I hope this answer helps you.