GMAT Critical Reasoning (CR) | Re: The number of North American children who are obesethat is,

The number of North American children who are obesethat is, who have more body fat than do 85 percent of North American children their ageis steadily increasing, according to four major studies conducted over the past 15 years.

If the finding reported above is correct, it can be properly concluded that



(A) when four major studies all produce similar results, those studies must be accurate

(B) North American children have been progressively less physically active over the past 15 years

(C)