Does anyone know how to do this??? please help me i need it for english class

Read this sentence from "the wife's lament

Based on thoreau's transcendental beliefs, why might he have written an essay opposing the war? to explain the individual's responsibilities within a corrupt society to begin his own political career to call attention to the ways in which the government was essentially good to express his lack of interest in societal issues

How does the author's purpose affect his or her text structure