Answer: To be able to receive the Federal Student Aid, you have to enter your Social Security Number. By doing this the Government can cross the data to certify you are eligible to this Federal Aid.
I feel that the missing word is most likely "lens" - check if it's among your options.
When something is compared to a lens through which the word is seen, it means that the world is seen through a certain perspective, that it's using a certain interpretation: here that of literary theory.
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Answer:
I don't see the poem, but a possible meaning is a "low-class" feeling...
Explanation: