As Greg Is Performing His Gymnastic Routine,he Experiences Intense Concentration,a

Multiple Choice

As Greg is performing his gymnastic routine,he experiences intense concentration,a detachment to the sights and sounds of his surrounding,and the sensation that time is moving much slower than before.His muscles,which had been aching only moments before,are free from any pain,and he feels that his energy as significantly increased.Greg is experiencing a state known as

A) flow.
B) asceticism.
C) attention overload.
D) nirvana.