One year ago a local government initiated an antismoking advertising campaign in local newspapers, which it financed ...

rolltribe September 2, 2015

Answer choice B

Couldn't another reason for B being incorrect is that the conclusion states that the Advertisement caused THE NUMBER OF PEOPLE in the locality who smoke cigarettes to decrease, whereas answer choice B just says that the AMOUNT OF CIGARETTES the smokers in the locality smoked decreased?

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Naz September 3, 2015

Yes, great catch! If these smokers did not quit, but merely smoke less, that won't have an effect on the numbers of people.

rolltribe September 4, 2015

Thanks you taught me well...