Schachter and Singer's (1962) experiment in which participants were injected with ...

Schachter and Singer's (1962) experiment in which participants were injected with epinephrineallegedly as part of a study of the effects of a vitamin compound on vision
 
  is one of the most famous studies in social psychology because the experiment showed that
  a. participants can become very angry and upset when research is unethical.
  b. emotions can be the consequence of self-perception processes.
  c. when arousal is sufficiently high, the situation makes no difference.
  d. anger is easy to identify, but elation is more difficult.