The answer is letter C.
Progressive muscle relaxation should be performed before an intense exercise routine. This is known to cause relaxation and release the anxiety that an individual is feeling. It is a common practice done by athletes to help them block out external stimulus and help them focus in their games. Progressive relaxation contributes to the internal balance of individual helping him have an improved performance. Coaches should always include this pre-game so that their athletes are conditioned both in body and in mind.
I'd say c but I'm not positive
