Argument: 'The unemployment rate fell last quarter. When unemployment falls, consumer confidence rises. Therefore, consumer confidence rose last quarter.' A critic challenges: 'Other factors may have suppressed consumer confidence.' The most effective response relies on which assumption?
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A
Consumer confidence always tracks unemployment perfectly
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B
No other factor was strong enough to override the effect of falling unemployment on confidence
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C
The unemployment statistics were accurately measured
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D
Consumer confidence is the best economic indicator