According to the passage, which of the following describes a result of the way in which researchers generally conduct clinical trials?

They expend resources on the storage of information likely to be irrelevant to the study they are conducting.

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They sometimes compromise the accuracy of their findings by collecting and analyzing more information than is strictly required for their trials.

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They avoid the risk of overlooking variables that might affect their findings, even though doing so raises their research costs.

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Because they attempt to analyze too much information, they overlook facts that could emerge as relevant to their studies.

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In order to approximate the conditions typical of medical treatment, they base their methods of information collection on those used by hospitals.

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Solution

The correct option is D They expend resources on the storage of information likely to be irrelevant to the study they are conducting.
The second sentence of the passage makes it clear - researchers collect far more background information on patients than is required, thereby escalating costs of data collection, storage and analysis. Thus, A is the correct choice.
The passage does not suggest any of the statements the other options make. They can be rejected.

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