Researchers Have Concluded

Researchers have concluded

A) that sitting quietly and "resting" can be as effective as meditation and REST for some people.
B) that stress reduction occurs when people set aside time daily to engage in positive daydreaming or leisure reading.
C) that if a person finds it difficult to ignore upsetting thoughts, then concentrative meditation would be a good way to promote relaxation.
D) all of these to be true.