The vicious cycle described above could not result unless which of the following were true?
The question is twisted in interesting way with double negations. Note the use of "could not" along with "Unless"="IF..NOT" or "Except-IF"
You can simplify the question to:Reworded Question:
The vicious cycle described above could result if which of the following were true?
Hence you need to eliminate the choices which "breaks" the vicious cycle and choose the choice that does not [break the cycle]
(C) When lawmakers establish income tax rates in order to generate a certain level of revenue, they do not allow adequately for revenue that will be lost through evasion.-- This is the correct answer choice! This situation will ensure that the vicious cycle is continued.Hence choice(C) is the answer.
Tough RCs: Passage1 | Passage2 | Passage3 | Passage4 | Passage5 | Passage6 | Passage7