Critical Reasoning (CR) | Re: The country of Verovia exports millions of tons of coal each year, mor

Bunuel GMATNinja egmat

Can you please help me understand why B is wrong and A is right?

As per google - impassible means capable of feeling or suffering; susceptible to sensation or emotion & the word we are looking for is impassable.

Whatever the case maybe, I am sure of the intended meaning so my analysis based on that:
I marked A wrong because it says that the interior is impassable for "most part of the year" so it must be passable at some point in the year
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