According to this text,the step in preparing an informative presentation after you analyze the audience should be to

A) Research the topic. 
B) Determine your speech format
C) Determine the topic.
D) ​Organize the main points.

Informative Presentation

A speech or lecture focused on educating the audience about a particular subject or topic, without persuasion as the primary goal.

Analyze

To examine something in detail in order to understand it better or discover more about it.

Speech Format

The structured arrangement or outline of a speech, including the introduction, body, and conclusion, tailored to the speech's purpose and audience.