What should be changed to make the following sentence true? According to the Schachter-Singer law, simple tasks are performed best when arousal levels are relatively high, and complex tasks are performed best when arousal is low.
(a)- change the phrase "Schachter-Singer" to the phrase "Yerkes-Dodson"
(b)-change the word "high" to the word "moderate"
(c)-change the word "law" to the word "theory"
(d)-eliminate the word "Singer"