Preparation outline is described as the harbinger that assists in preparing the speech in a more organized and effective manner. Such outline consists of the introductory part followed by the body and reasons and evidences to justify the claim along with the conclusion.
As per the question, the given assertion would be considered true as a preparation outline must include the main points and sub-points in complete sentences to ensure that the ideas develop completely and in more comprehensive and effective manner. Thus, <u>option A</u> is the correct answer.
