What is the best way to describe a theme of this poem? Resolution

The correct answer should be "It is not always stated overtly and is understood only by reading the whole poem".

This is correct because the theme usually does not change itself, but there can be multiple themes analyzed. It is rarely stated overtly and requires some analysis and understanding so as to find it.

Explanation:

im gonna take a guess and say gas vans and chambers

- "a nonrestrictive clause functions as a modifier to a noun (that is an object, person or concept). these clauses can be described by the following three options: it is set off by comas, it contains a subject and a verbs and it adds nonessential information to the sentence.

for example, in "here is bill gates, who confounded microsoft software company" we can identify "who confounded microsoft software company" as a nonrestrictive clause modifying the noun bill gates. this clause can be describes as a nonrestrictive clause because it is separated by a comma, it adds nonessential information to identify who bill gates is and it must contain both a subject (who) and a verb (confounded)."