The last sentence is the correct one.
a long syllable, or stressed syllable, followed by a short, or unstressed, one. <span>refers to a </span>line<span> of four </span>trochaic<span> feet.</span>
The description that best defines the spatial pattern of organizing an essay is:
Information is organized to reveal the steps of a process in a particular order.
Since an essay is a type of text that is aimed at exposing the author's arguments about a given topic, the organization of the text should capture that aim. The most effective way to do so is to organize the supporting material coherently, in a way that guides the reader throughout all the author's arguments.