A 2010 Study Investigating Whether Darkness Increases Dishonesty and Self-Interested

A 2010 study investigating whether darkness increases dishonesty and self-interested behavior while completing a math task found:

A) participants in the brightly lit room exaggerated their performance on the task.
B) participants in the dimly lit room performed better than participants in the brightly lit room.
C) participants in the brightly lit room performed better than participants in the dimly lit room.
D) there was no difference in task performance among those in the dimly lit room versus the brightly lit room.