Answer:
C). Nature versus Humanity.
Step-by-step explanation:
Theme is exemplified as the central idea that binds a literary text and conveys the author's intended message to the audience. Such ideas are often universal in appeal and thus, everyone in the audience could associate themselves to it.
As per the question, the topic or theme that all three poems in this reading have in common would be 'nature versus humanity' which remains the dominant idea in all these three poems through which the readers could relate the three poems that would aid them in inter-textual understanding and analysis. Thus, option C is the correct answer.