hard · GMAT Verbal
A warehouse network replaced its regional distribution model, in which each of 10 regional warehouses shipped only to customers within its own region, with a national pooling model, in which any of the 10 warehouses can ship to any customer nationwide based on which warehouse has the item in stock. Average shipping distance per order fell by 12% under the new model. Executives conclude that the pooling model reduces the company's total carbon emissions from shipping.
Which of the following, if true, most weakens the executives' conclusion?
- Under the pooling model, each warehouse now stocks a narrower range of items than it did under the regional model.
- Orders now often ship as multiple separate legs, each with its own fixed emissions cost.
- The company's total order volume increased after the switch to the pooling model.
- Some regional warehouses under the old model were located in areas with cheaper real estate than the new model requires.
- Customer satisfaction scores did not change significantly after the switch to the pooling model.
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