The correct answer is D. Spend as much time developing the mind as developing the body.
Explanation:
The purpose of the author in a text is the main goal the author wants to achieve with the audience, common general purposes include to inform, to entertain, to persuade or to explain. Additionally, the author general purpose is usually linked to some idea or topic developed during the text. In the case of the text presented the author first explains several actions people do to look after their body and after this the author questions this previous practices by using a rhetorical question that mainly ask the audience why they do all these actions for their bodies but not for the minds, which means the author is questioning the amount of time spent in developing the body and the little time in developing the mind and at the same time the author invites the audience to start spending time to develop and look after their minds.
This means the author main purpose is to convince the audience to " Spend as much time developing the mind as developing the body" as the author emphasizes in the time and actions people do for their body and the need to do as many actions for developing one's mind, also the author's words are a direct invitation to the audience to take action and look after their minds and not only their bodies, which mains the main goal is to persuade and this purpose is linked to the idea of developing the mind.
Crusoe is astonished one day to discover the single print of a man's na.ked foot in the sand. Crusoe is terrified and retreats to his “castle,” where he entertains thoughts that the de.vil has visited the island.
