Answer: D. Imitative yet fresh
Explanation:
Koch´s poem is a parody, meaning that it purposefully makes fun of something. In this case, the author mocks a serious composition by imitating its style or tone. "Variations on a Theme by William Carlos
Williams," as many other poems by Koch, used satire to express his disagreement with the idea of poetry being solemn and not suitable for humor. By using a similar structure and theme (having done something wrong and providing an excuse for it), Koch mocks "This is Just to Say," by William Carlos Williams. And to make it more clear, Koch makes his character a doctor, just like Williams, who was a poet in his free time after working in the hospital.