I would say these lines illustrate a quatrain.
A quatrain is a stanza consisting of four lines, as is the case here. Shakespeare's sonnets have a specific structure - the first twelve lines are divided into three quatrains (4*3 =12); the final two lines are called a couplet, and the message of the entire sonnet can be found in those two final lines.
Answer:
C.
Explanation:
Options A and B are too specific. The answer would be short and definite, not lengthy enough to write a paper on.
Option D involves other countries. The paper is supposed to be about railroads in America.
The only option left is C. This is correct because it has potential for a paper and isn't off-topic or too specific.
