Before Coming to His Final Exam,Howie Drinks Four Cans of Surge

Multiple Choice

Before coming to his final exam,Howie drinks four cans of Surge (which contains a lot of caffeine) .As the final is being passed out,Howie becomes aware that his hands are shaking and his heart is beating fast.According to ____ theory,whether Howie attributes his shaking hands and beating heart to ingesting a lot of caffeine or to being concerned about the final will affect his emotional experience.

A) James's peripheral
B) Cannon's central
C) the Schachter-Singer
D) the Shenker-Turner