Answer: Best;moderate
Explanation:
Thaddeus will be performing in a band concert and according to the Yerkes-Dodson Law his musical performance will be best if his physiological arousal will be moderate.
In case of over excitement the performance might get affected as the person performing gets excited and may over perform.
In case the person is not completely ready for the performance and may loose his confidence at the time of performance.
Because, when someone has a heart attack it is due to a blood colt went up into their heart so in order to relieve it you have to thin the blood so if there are more they wont break off as well and go down to the heart while the person is having the heart attack because it will cause them to die. A stroke however, is when blood supply to the brain is interrupted or reduced. It deprives the brain of oxygen and nutrients, which can cause the brain cells to die.