Which of these is a drawback of using brain recording techniques in scientific studies?

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Brain recording techniques can be costly because of the need for sophisticated equipment, experienced operators, and extensive time and effort from research subjects. This can be a drawback for researchers who may not have access to sufficient funds or the resources to conduct extensive studies. A and D are incorrect because brain recording techniques are typically non-invasive and do not require the ingestion of radioactive substances. B is incorrect because brain recording techniques have allowed researchers to make significant advances in understanding the relationship between brain function and cognitive processes.

Which of These Is a Drawback of Using Brain Recording