Which Sentence Is Expressed Correctly

Multiple Choice

Which sentence is expressed correctly?

A) The first step in preparing a public speech is to analyze your audience and topic; the second step is to research, organize, and develop the topic; and the third step is to rehearse the presentation.
B) The first step in preparing a public speech is to analyze your audience and topic, the second step is to research, organize, and develop the topic, and the third step is to rehearse the presentation.
C) The first step in preparing a public speech is to analyze your audience and topic, the second step is to research, organize, and develop the topic and the third step is to rehearse the presentation.