GMAT Critical Reasoning (CR) | Neither a rising standard of living nor balanced trade, by

So, to be able to compete on international market any country should maintain at decent level its trade balance and living standarts.
We need to find proper pair "="(trade balance)/UP (standarts of living):

A) "="(trade balance)/"UP" (standarts of living) Correct one!
B) "="(trade balance)/"DOWN" (standarts of living) doesn't match, hence incorrect.
C) "DOWN"(trade balance)/"UP" (standarts of living) doesn't match, hence incorrect.
D)
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