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IEsailor
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I also think that the answer should be C. The theory is talking or the use of wells in prudent manner- in other words the behavior of drinkers towards wells, which results in the quality of well being good or bad.
If you have to check behavior of dinkers or way of using the wells from the quality of wells used, it is a must that at the starting point the quality is same- only then we can say that whether the use was prudent or not.
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I too think the answer is C using the Variance Test from Powerscore CR Bible.
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Spot on guys !!! C it is
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clean C here,where prior condition of the wells need to be known.
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puneetj
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Narrowed it down to C and B....then chose C..
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C is the only one that passes the yes/no test
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C should be the answer



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