Dr Jung Argues That Increases in Temperature Cause Increases in Aggression

Dr. Jung argues that increases in temperature cause increases in aggression. To support his claim, he recorded the temperature each day and noted the number of reported assaults. More assaults were recorded on hotter days. His claim is inaccurate because

A) the data are based on self-report
B) the variables are controlled
C) this is a case study
D) the data are correlational
E) assaults are negatively related to aggression