I believe the answer is: the introduction, the body, and the conclusion.
The introduction refers to the efforts that the speaker make to attract the attention of the audiences in the beginning of the speech, the body refers to the actual content of the speech, and the conclusion refers to final/core message that the speaker want to give to the audience.
As explained in your textbook, the three main parts of a speech are called the introduction, the body, and the conclusion.
