GMAT Critical Reasoning (CR) | Re: The growing popularity of computer-based activities was - Q2

The growing popularity of computer-based activities was widely predicted to result in a corresponding decline in television viewing. Recent studies have found that, in the United States, people who own computers watch, on average, significantly less television than people who do not own computers. In itself, however, this finding does very little to show that computer use tends to reduce television viewing time, since_______.

Was badly confused between C, D, and E

But choice C summarises D and
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