A student reads a case study about a town that banned plastic bags. The article states that litter decreased by 40% and business sales dropped 5%. What is the BEST way to evaluate this evidence?
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A
Accept both statistics as equally important to the author's argument
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B
Consider whether the statistics come from reliable, unbiased sources
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C
Ignore the business sales data because it is negative
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D
Focus only on the 40% decrease since it supports environmental goals