(A) who was thrust into a world that was dominated by wealthier, better-educated, and more polished people than him
(B) who had been thrust into a world that was dominated by more wealthy, educated, and polished people than him
(C) who had been thrust into a world dominated by wealthier, better-educated, and people more polished than he was
(D) thrust into a world dominated by more wealthy, educated, and polished people than him
(E) thrust into a world dominated by wealthier, better-educated, and more polished people than he
Solution:
Modifier + Comparison
A, B, and C are incorrect because "who" isn't placed next to the noun it's modifying. “who” is modifying “Midwesterner” here.
In D, “more wealthy” is incorrect. Moreover, “he was…thrust into… dominated by more polished than he (was)” is the correct structure. “…than him” is incorrect.
In E, the errors with D have been rectified and hence, E is the best choice.
Sentence Correction - 1000 Questions with Solution:
