medium · LSAT Logical Reasoning

Which one of the following, if true, most strengthens the psychologist's conclusion?

1. Meditation has been practiced across many distinct cultures for thousands of years, long before any modern science could measure focus.
2. Brain scans reveal heightened activity in the prefrontal cortex, the region governing focus, both during and after meditation.
3. People who are already naturally focused tend to have the patience required to stick with the difficult early stages of learning meditation.
4. Numerous accomplished public figures in business and the arts credit their daily meditation practice as the key driver of their success.
5. Meditators consistently report that they fall asleep faster and sleep more soundly at night than comparable non-meditators do.

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