The piece of evidence that will best prove a point is one that is rooted in founded research. This means that the source is verifiable and trustworthy. The correct piece of evidence that supports the idea that vacation improves familial relationships is;
- "Studies have found that chronic stress can modulate a part of the brain that inhibits goal-directed activity and can cause problems with memory. Time off can tune up a well-functioned brain."
We can see from this option that the evidence was founded on a study that was carried out.
This study likely followed provable principles, thus making its findings true and verifiable. Readers will be more accepting of it.
Therefore this choice, option B, provides the best evidence.
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