It would be D. Because that is the only answer that could make sense.
There needs to be a question mark after the first sentence.
to gather ideas and information so that we can expand and enrich our own knowledge and understanding of particular disciplines, subject areas and topics.
to identify, build and support arguments or research which demonstrate the understandings we have acquired.
Is this a multiple choice question? If so, what are the options.
If not, the rhetorical device used is an anaphora because in the verses "Their eyes weighed us, their eyes judged us." the phrase <em>their eyes</em> is repeated.