GMAT Critical Reasoning (CR) | Re: Kernland imposes a high tariff on the export of unprocessed

Wow, took me 10 minutes to finally understand this problem. C and D are good contenders if you don't read this question carefully. the last sentence is suggesting that tariff -> lower urban unemployment but E directly attacks that and says that tariff -> higher urban unemployment because they are moving into those cities without jobs. D is actually a strengthener to be because the tariff is helping a certain group of people that otherwise would not have.

This is definitely a GMAT type question,
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